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La Organización del Material Genético - Cromosomas Eucariontes
 
04:24
Eucariontes Estos organismos constan de una o más células eucariotas, abarcando desde organismos unicelulares hasta verdaderos pluricelulares en los cuales las diferentes células se especializan para diferentes tareas y que, en general, no pueden sobrevivir de forma aislada. En el caso de los organismos eucariontes, el cromosoma está formado por tres tipos diferentes de moléculas: el ADN, las histonas y las proteínas no histónicas. De hecho, los cromosomas eucarióticos son moléculas muy largas de ADN de doble hélice que interactúan con proteínas (histonas y no histonas) y se pueden hallar en estados relajados o poco compactados, como en los núcleos de las células en interfase, hasta en estados altamente compactados, como sucede en la metafase mitótica.
Views: 34085 IIGuntherII
Organizacion del ADN y Cromosomas
 
02:15
En este material audiovisual se entrega el conocimiento científico sobre la organización del ADN y Cromosomas
Views: 96177 Alejandro Neira
Chromosomes and Karyotypes
 
07:33
Explore chromosomes and karyotypes with the Amoeba Sisters! This video explains chromosome structure, how chromosomes are counted, why chromosomes are important, and how they can be arranged in a karyotype! This video also tackles a few misconceptions about how chromosomes. Table of Contents: 1:15 What makes up a chromosome? 2:18 Understanding replicated vs. unreplicated chromosome 3:28 Introducing a Karyotype 4:01 Potential Misconception in Karyotype 5:28 XX and XY Chromosomes Vocabulary includes chromosome, centromere, sister chromatids, chromatin, nucleosome, haploid, diploid, homologous chromosomes, gametes, autosomes, and sex chromosomes! Special thanks to Dr. Brian Davis for his expertise in verifying that a typical karyotype would show 2 chromatids per chromosome. (This has been a misconception we've seen in the classroom from many diagrams) Reference: OpenStax, Biology. OpenStax CNX. Mar 21, 2018 http://cnx.org/contents/[email protected] A real life karyotype from NIH (in public domain) https://commons.wikimedia.org/wiki/File:NHGRI_human_male_karyotype.png can be excellent for viewing alongside this video. Support us on Patreon! http://www.patreon.com/amoebasisters More ways to Support Us? http://www.amoebasisters.com/support-us.html Our Resources: Biology Playlist: https://www.youtube.com/playlist?list=PLwL0Myd7Dk1F0iQPGrjehze3eDpco1eVz GIFs: http://www.amoebasisters.com/gifs.html Handouts: http://www.amoebasisters.com/handouts.html Comics: http://www.amoebasisters.com/parameciumparlorcomics Unlectured Series: https://www.amoebasisters.com/unlectured Connect with us! Website: http://www.AmoebaSisters.com Twitter: http://www.twitter.com/AmoebaSisters Facebook: http://www.facebook.com/AmoebaSisters Tumblr: http://www.amoebasisters.tumblr.com Pinterest: http://www.pinterest.com/AmoebaSister­s Instagram: https://www.instagram.com/amoebasistersofficial/ Visit our Redbubble store at http://www.amoebasisters.com/store The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching science at the high school level. Pinky's teacher certification is in grades 4-8 science and 8-12 composite science (encompassing biology, chemistry, and physics). Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. For more information about The Amoeba Sisters, visit: http://www.amoebasisters.com/about-us.html We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: https://openstax.org/details/books/biology We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube's community guidelines https://www.youtube.com/yt/policyandsafety/communityguidelines.html and YouTube's policy center https://support.google.com/youtube/topic/2676378?hl=en&ref_topic=6151248. We also reserve the right to remove comments with vulgar language. Music is this video is listed free to use/no attribution required from the YouTube audio library https://www.youtube.com/audiolibrary/music?feature=blog We have YouTube's community contributed subtitles feature on to allow translations for different languages, and we are thankful for those that contribute different languages! YouTube automatically credits the different language contributors below (unless the contributor had opted out of being credited). We are not affiliated with any of the translated subtitle credits that YouTube may place below. If you have a concern about community contributed contributions, please contact us.
Views: 87577 Amoeba Sisters
Cantidad de Material Genético
 
06:17
Formas de contabilizar el material genético
Views: 17787 YoEstudio
¿Cuántos cromosomas tienen los humanos
 
04:05
Un cromosoma es una estructura altamente organizada compuesta por proteínas y una única molécula de ácido desoxirribonucleico, más conocido por las siglas ADN. Los cromosomas se encuentran dentro del núcleo de las células eucariotas y contienen la mayor parte de la información genética de un individuo. Las células procariotas no presentan núcleo y su material genético se organiza formando lo que se conoce como nucleoide, generalmente compuesto por un solo cromosoma de forma circular. Los 23 pares de cromosomas humanos El número y patrón cromosómico, denominado cariotipo, suele ser constante dentro de cada especie animal y vegetal. Las células somáticas de la especie humana tienen 23 pares de cromosomas; son células diploides y tienen 23 cromosomas pero con dos copias de cada uno, lo que hace un total de 46 cromosomas individuales. Cada par de cromosomas está compuesto por un cromosoma heredado de cada progenitor.
Endosimbiosis: ¿Células adentro de Células?
 
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Nora Maidana, directora del Laboratorio de Diatomeas Continentales, charlando con nosotros sobre la teoría de la endosimbiosis. Gracias infinitas a Mariana Garberoglio por los dibujos que realizó en este video. Suscribite para más videos! https://www.youtube.com/channel/UCmFZSmVFZPx8-4D_8XorNUQ?sub_confirmation=1 Seguinos en FB para más contenido! https://www.facebook.com/xplora.prod/ ¿Tenés dudas o sugerencias? ¿Querés comentarnos algo? ¿Querés que te entrevistemos, o a alguien que conocés? Comunicate con nosotros a [email protected] LINKS Y BIBLIOGRAFÍA: http://buleria.unileon.es/bitstream/handle/10612/2324/ACC.9.Uno%20de%20los%20nuestros.pdf?sequence=1 (LYNN MARGULIS) http://www.jstor.org/stable/24922800?seq=1#page_scan_tab_contents (Libro de la científica americana) https://books.google.com.ar/books?hl=es&lr=&id=3sKzeiHUIUQC&oi=fnd&pg=PR9&dq=endosimbiosis+lynn+margulis&ots=uJwPOrSCNc&sig=gaLn_utrO5_Ud31HH5CuXmqi-pM#v=onepage&q&f=false (Otro libro de la misma investigadora) https://ntrs.nasa.gov/search.jsp?R=19820044578 (Un libro más, ¿Por qué no? de Lynn Margulis) -------------------------------------------------------------------- Estos videos son periódicamente realizados por Benjamín Vidal, Manuel Otero y Nicolás Martorell, estudiantes de la carrera de Ciencias Biológicas, FCEN, UBA. Los derechos sobre el contenido pertenecen a ellos. Por cualquier duda, queja o sugerencia, comunicarse por cualquiera de los medios arriba mencionados.
Views: 7864 Xplora
What is the Genome? - O que é o genoma?
 
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This is the second video of the Cancer Facts project. In this video, we will explore some concepts related to our genome that are very important for the understanding of cancer and its mechanisms. For more information regarding the Cancer Facts project, please check the "about section" of this Youtube channel. No segundo video do projeto Cancer Facts, exploramos os conceitos sobre o nosso genoma, muito importantes para o entendimento do câncer e seus mecanismos. Para mais informações do projeto, acesse a seção "sobre" desse canal do Youtube. Música: "Carefree" Kevin MacLeod (incompetech.com)  Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/
Views: 6556 Cancer Facts
cromosomas
 
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Nos introduce en lo que son los cromosomas y sus características, los elementos a tener en cuenta para su estudio y algunas diferencias entre los autosomas y los gonosomas.
Telómeros y Telomerasa
 
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Telómeros , mecanismo de acción de Telomerasa
Views: 4986 Cristopher Vergara
Diferencias entre ADN y ARN nivel experto para principiantes EN 5 MINUTOS
 
06:00
Necesitas saber las diferencias rápido y bien explicadas? Éste video te resolverá el problema. Sígueme en Instagram https://www.instagram.com/camachlearn/ Sígueme en Twitter https://twitter.com/CamachLearn Contacto: [email protected]
Views: 378958 Camach Learn
Biología celular y molecular: Cromosomas
 
05:03
Universidad Autónoma de Querétaro Facultad de ciencias naturales Edición: Verónica Gómez Olvera
Introduction to Cells: The Grand Cell Tour
 
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Compares and contrasts prokaryote cells and eukaryote cells before exploring organelle structures and functions! Video includes the modern cell theory and plant vs. animal cell comparisons. See table of contents by expanding video details. 👇 Video has a handout: http://www.amoebasisters.com/handouts.html Contents of Major Points in Video: Cell Theory: 1:10 Prokaryotes and Eukaryotes 1:55 Tour Inside Cell Explaining Organelles and Structures 3:11 Plant Cells vs. Animal Cells 7:11 Pathway of Protein Out of Cell 8:15 *As mentioned in video, the structures and organelles mentioned in the video have more functions than able to fit in this short video. We highly encourage you to explore these to discover more! Cell organelles and structures discussed include the cytoplasm, golgi, endoplasmic reticulum, ribosomes, cell membrane, cell wall, vacuoles, mitochondria, and chloroplasts. Support us on Patreon! http://www.patreon.com/amoebasisters Our FREE resources: GIFs: http://www.amoebasisters.com/gifs.html Handouts: http://www.amoebasisters.com/handouts.html Comics: http://www.amoebasisters.com/parameciumparlorcomics Connect with us! Website: http://www.AmoebaSisters.com Twitter: http://www.twitter.com/AmoebaSisters Facebook: http://www.facebook.com/AmoebaSisters Tumblr: http://www.amoebasisters.tumblr.com Pinterest: http://www.pinterest.com/AmoebaSister­s Instagram: https://www.instagram.com/amoebasistersofficial/ Visit our Redbubble store at http://www.amoebasisters.com/store.html The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching science at the high school level. Pinky's teacher certification is in grades 4-8 science and 8-12 composite science (encompassing biology, chemistry, and physics). Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. For more information about The Amoeba Sisters, visit: http://www.amoebasisters.com/about-us.html We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: https://openstax.org/details/books/biology We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube's community guidelines https://www.youtube.com/yt/policyandsafety/communityguidelines.html and YouTube's policy center https://support.google.com/youtube/topic/2676378?hl=en&ref_topic=6151248. We also reserve the right to remove comments with vulgar language. Music is this video is listed free to use/no attribution required from the YouTube audio library https://www.youtube.com/audiolibrary/music?feature=blog We have YouTube's community contributed subtitles feature on to allow translations for different languages. YouTube automatically credits the different language contributors below (unless the contributor had opted out of being credited). We are thankful for those that contribute different languages. If you have a concern about community contributed contributions, please contact us.
Views: 966764 Amoeba Sisters
DNA Replication
 
10:10
Paul Andersen explains how DNA replication ensures that each cell formed during the cell cycle has an exact copy of the DNA. He describes the Meselson-Stahl experiment and how it showed that DNA copies itself through a semi-conservative process. He then explains how multiple enzymes, like DNA polymerase, helicase, primase, ligase, and single strand binding proteins copy DNA. He also differentiates between the leading and the lagging strand. He explains how DNA is anti-parallel in nature and how eukaryotic cells have multiple origins of replication. Intro Music Atribution Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License
Views: 875768 Bozeman Science
The Cell Cycle and its Regulation
 
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Your cells have to divide when you're growing, to heal wounds, and to replace dead cells. But how do cells know when to divide and when not to divide? We can't have cells just growing willy-nilly! That's what cancer is, and that's bad. Luckily, cells obey something called the cell cycle, which is regulated by a variety of signaling molecules, which tell the cell when to divide and when to chill out. Let's look at the phases of this cycle and some of its regulatory mechanisms now. Subscribe: http://bit.ly/ProfDaveSubscribe [email protected] http://patreon.com/ProfessorDaveExplains http://professordaveexplains.com http://facebook.com/ProfessorDaveExpl... http://twitter.com/DaveExplains Biology Tutorials: http://bit.ly/ProfDaveBio Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths American History Tutorials: http://bit.ly/ProfDaveAmericanHistory
Scientists Synthesize First Functional "Designer" Chromosome in Yeast
 
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An international team of scientists led by Jef Boeke, PhD, director of NYU Langone Medical Center's Institute for Systems Genetics, has synthesized the first functional chromosome in yeast, an important step in the emerging field of synthetic biology, designing microorganisms to produce novel medicines, raw materials for food, and biofuels. Over the last five years, scientists have built bacterial chromosomes and viral DNA, but this is the first report of an entire eukaryotic chromosome, the threadlike structure that carries genes in the nucleus of all plant and animal cells, built from scratch. Researchers say their team's global effort also marks one of the most significant advances in yeast genetics since 1996, when scientists initially mapped out yeast's entire DNA code, or genetic blueprint. "This work represents the biggest step yet in an international effort to construct the full genome of synthetic yeast," says Dr. Boeke. "It is the most extensively altered chromosome ever built. But the milestone that really counts is integrating it into a living yeast cell. We have shown that yeast cells carrying this synthetic chromosome are remarkably normal. They behave almost identically to wild yeast cells, only they now possess new capabilities and can do things that wild yeast cannot." Learn more about this discovery: http://www.nyulangone.org/press-releases/scientists-synthesize-first-functional-designer-chromosome-in-yeast Learn more about the Institute for Systems Genetics: http://research.med.nyu.edu/systemsgenetics
Views: 9568 NYU Langone Health
Lynn Margulis y el origen de la células
 
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Le presentamos a nuestro personaje destacado de la semana, se trata de Lynn Margulis, una bióloga que realizó estudios importantes sobre el origen de las células. Noticiario Esfera Azul Producción Greentv, La Televisión Viva
Views: 2063 greentv noticias
¿Qué Es La MITOSIS?
 
03:06
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Views: 29 Punioo Cripto
CONCEPTO DE CÉLULA/CONCEPT OF CELL
 
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Quiero compartir mis conocimientos y experiencia como maestro de más de 18 años en la educacion en las áreas de Quimica Biologia y Matematicas Definiremos el concepto de célula y hablaremos de su clasificación básica, algo sobre scientificos que aportarón en su descubrimiento y también hablaremos brevemente acerca de las bacterias, en video clases posteriors hablaremos de la fisiologia celulares es decir de las funciones de las partes que la component. I want to share my experience and knowledge as a teacher (More than 18 years) in education area such as: Chemistry, Biology and Math. We are going to talk about concept of cell on a basic concept just in an introduction way also I am going to talk about some Scientifics those who support these concept. I am going to talk about bacterium briefly and on next video classes we are going to talk about Cell physiology (Function of each cellular structure)
Documental "Dentro de la célula / Inside the cell"
 
29:58
Nuestras capacidades como seres vivos dependen de unas estructuras de apenas una diezmillonésima parte de un metro. La célula es la unidad básica que forma los seres vivos y en cada uno de sus componentes, su crecimiento y duplicación, en su manera de obtener y procesar energía, su lenguaje, sus mecanismos de defensa e incluso en su muerte se esconden múltiples claves para entender la vida. Dentro de la célula/Inside the cell es serie de microvídeos del Centro de Biología Molecular Severo Ochoa que dan respuesta de una manera sencilla a ocho grandes cuestiones de la biología molecular de la célula. La lista entera se puede consultar aquí: http://8cellquestion.cbmso.es. Un vídeo original del CBMSO realizado en 2016 con financiación de la Fundación Española para la Ciencia y la Tecnología, música de Cato Hoeben y recurso multimedia de Andrew Brugess con licencia Creative Commons.
Mitosis y meiosis. Nivel experto EN 4 MINUTOS
 
04:18
Tienes examen mañana?? No pusiste atención a clases? Ve éste video y prepárate para tu examen fácil y rápido!!! Sígueme en Instagram https://www.instagram.com/camachlearn/ Sígueme en Twitter https://twitter.com/CamachLearn Contacto: [email protected]
Views: 830871 Camach Learn
Organización de la cromatina y empaquetamiento del ADN: nucleosoma y solenoide - PARTE I
 
07:50
En este vídeo se explica el primer nivel de organización de la cromatina y empaquetamiento del ADN: el nucleosoma. Básicamente, se describe las partes del nucleosoma (núcleo nucleosómico y ADN espaciador). Este video se complementa con la segunda parte: https://www.youtube.com/watch?v=lyt6-Jn_JaA&feature=youtu.be 👈😉 Si el vídeo aportó a tu aprendizaje, dale like 👍 y compártelo, por favor. De esta manera nos ayudas con nuestro compromiso de difundir el conocimiento, la ciencia y la cultura en la población. 🌎😉 Suscríbete a nuestro canal para que recibas las notificaciones de todos nuestros videos de ciencia y cultura. 👉👀 Hagamos de la Biología molecular y la Genética unas ciencias entretenidas y fáciles. ¡Aprendamos con EdSci! 📙📝✏🔍🎓
Empaquetamiento del ADN en cromatina, nucleosomas. Anotaciones en castellano
 
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DNA Tube Video acerca del empaquetamiento del ADN en cromatina hasta formar los nucleosomas y subsiguientes niveles de plegamiento Anotaciones en castellano por Gabriela Iglesias
Views: 201565 Gaby Iglesias
¿Cómo se crea una célula a partir de otra célula?
 
04:26
Hace 3.500 millones de años apareció la primera célula en la Tierra. Hoy sabemos que todos los organismos descienden de aquella primera célula que adquirió la capacidad de auto-replicarse. En este microvídeos aprenderemos cómo se puede generar una célula a partir de otra y cuáles son las claves para que este proceso se desarrolle sin errores. Dentro de la célula/Inside the cell es serie de microvídeos del Centro de Biología Molecular Severo Ochoa que dan respuesta de una manera sencilla a ocho grandes cuestiones de la biología molecular de la célula. La lista entera se puede consultar aquí: http://8cellquestion.cbmso.es. Un vídeo original del CBMSO realizado en 2016 con financiación de la Fundación Española para la Ciencia y la Tecnología. La música de Cato Hoeben y los recursos multimedia de Adrew Brugess con licencia Creative Commons han sido utilizados en la producción de este vídeo.
Regulation of Gene Expression: Operons, Epigenetics, and Transcription Factors
 
13:07
We learned about gene expression in biochemistry, which is comprised of transcription and translation, and referred to as the "central dogma" of molecular biology. But how is this process regulated? How does a cell know which genes to express and when? Well it's pretty complicated, but let's just get our feet wet by looking at operons, epigenetics, and transcription factors! Subscribe: http://bit.ly/ProfDaveSubscribe [email protected] http://patreon.com/ProfessorDaveExplains http://professordaveexplains.com http://facebook.com/ProfessorDaveExpl... http://twitter.com/DaveExplains Biology Tutorials: http://bit.ly/ProfDaveBio Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths American History Tutorials: http://bit.ly/ProfDaveAmericanHistory
Views: 100370 Professor Dave Explains
Protein Synthesis (Updated)
 
08:47
Explore the steps of transcription and translation in protein synthesis! This video explains several reasons why proteins are so important before explaining the roles of mRNA, rRNA, and tRNA in the steps of protein synthesis! Expand details for contents and resources. 👇Video handouts and resources on http://www.amoebasisters.com/handouts. This video replaces our old protein synthesis video: https://youtu.be/h5mJbP23Buo Table of Contents: 0:46 Why are proteins important? 1:48 Introduction to RNA 2:22 Steps of Protein Synthesis 2:43 Transcription 3:54 Translation 6:08 Introduction to mRNA Codon Chart 7:51 Quick Summary Image Vocabulary in this video includes DNA, mRNA, rRNA, and tRNA. This video mentions that proteins can be made of 1 or more polypeptide chains and that proteins typically experience folding and other modifications (to be functional proteins.) Codons and the amino acids they code for is represented by standard charts can be found in the public domain. While the rectangle chart is the common format, there may be other ways to represent the information. P.S. If learning about mutations, check out this cool codon chart that includes mutations(!!) in the public domain: https://commons.wikimedia.org/wiki/File:Notable_mutations.svg Our videos are designed to introduce basic concepts and hopefully to inspire students to stay curious about the content. We simply cannot include all of the exceptions and minute details in a video under 10 minutes, and this is why we so frequently remind people of this in our videos. We want students to go beyond our videos to explore the depth of the material. P.S. On our website, we emphasize that our videos contain science comics- not scientific illustrations. In real life, amoebas don't look like our characters. Our illustrated cell cartoons are definitely not to scale. Nitrogen and carbon don't tap dance. DNA is right-handed (but there are exceptions- worth a google) and doesn't have eyes...a face...or a top hat... Learn more about the purpose of our videos here: http://www.amoebasisters.com/our-videos.html Support us on Patreon! http://www.patreon.com/amoebasisters Our FREE resources: GIFs: http://www.amoebasisters.com/gifs.html Handouts: http://www.amoebasisters.com/handouts.html Comics: http://www.amoebasisters.com/parameciumparlorcomics Connect with us! Website: http://www.AmoebaSisters.com Twitter: http://www.twitter.com/AmoebaSisters Facebook: http://www.facebook.com/AmoebaSisters Tumblr: http://www.amoebasisters.tumblr.com Pinterest: http://www.pinterest.com/AmoebaSister­s Instagram: https://www.instagram.com/amoebasistersofficial/ Visit our Redbubble store at http://www.amoebasisters.com/store.html The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching science at the high school level. Pinky's teacher certification is in grades 4-8 science and 8-12 composite science (encompassing biology, chemistry, and physics). Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. For more information about The Amoeba Sisters, visit: http://www.amoebasisters.com/about-us.html We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: https://openstax.org/details/books/biology We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube's community guidelines https://www.youtube.com/yt/policyandsafety/communityguidelines.html and YouTube's policy center https://support.google.com/youtube/topic/2676378?hl=en&ref_topic=6151248. We also reserve the right to remove comments with vulgar language. Music is this video is listed free to use/no attribution required from the YouTube audio library https://www.youtube.com/audiolibrary/music?feature=blog We have YouTube's community contributed subtitles feature on to allow translations for different languages, and we are thankful for those that contribute different languages! YouTube automatically credits the different language contributors below (unless the contributor had opted out of being credited). We are not affiliated with any of the translated subtitle credits that YouTube may place below. If you have a concern about community contributed contributions, please contact us.
Views: 627863 Amoeba Sisters
adn-dna.net 0299 Cromosomas
 
03:55
Recurso educativo en el aula virtual de ciencias de la naturaleza http://www.adn-dna.net/ (acceso libre y gratuito).Consultar actualizaciones y actividades del aula en el blog http://adn-dna.blogspot.com.es/ © Vídeo de YouTube
Views: 165 adn-dna.net
Cellular Respiration and the Mighty Mitochondria
 
07:49
Explore how ATP is made in 3 steps of aerobic cellular respiration with the Amoeba Sisters! This also compares this process to photosynthesis and introduces ATP structure. This video has a handout here: http://www.amoebasisters.com/handouts.html We appreciate feedback on our videos and pin clarifications on our videos if needed. We do wish we had been more clear stating that the Krebs cycle "'indirectly" requires oxygen" instead of just stating it "requires oxygen" ---as we do not want to imply that oxygen is a reactant in the Krebs cycle (Citric Acid Cycle). While oxygen is not a reactant for the Krebs Cycle, the oxidation steps of the Krebs Cycle cannot occur without the presence of oxygen. (Thus, the Krebs Cycle is considered an aerobic process) Reference Source: OpenStax https://cnx.org/contents/[email protected]:[email protected]/Oxidation-of-Pyruvate-and-the- 36 ATP? 38 ATP? The big thing we want to emphasize, as we do in the video, is this number is an estimate. It's likely not even as high as those numbers everytime. And regarding the video note about how ATP may need to be used to shuttle in NADH from glycolysis---here's a question answered by Miller and Levine that you may find helpful: http://www.millerandlevine.com/ques/atp.html Support us on Patreon! http://www.patreon.com/amoebasisters Our FREE resources: GIFs: http://www.amoebasisters.com/gifs.html Handouts: http://www.amoebasisters.com/handouts.html Comics: http://www.amoebasisters.com/parameciumparlorcomics Connect with us! Website: http://www.AmoebaSisters.com Twitter: http://www.twitter.com/AmoebaSisters Facebook: http://www.facebook.com/AmoebaSisters Tumblr: http://www.amoebasisters.tumblr.com Pinterest: http://www.pinterest.com/AmoebaSister­s Instagram: https://www.instagram.com/amoebasistersofficial/ Visit our Redbubble store at http://www.amoebasisters.com/store.html The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching science at the high school level. Pinky's teacher certification is in grades 4-8 science and 8-12 composite science (encompassing biology, chemistry, and physics). Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. For more information about The Amoeba Sisters, visit: http://www.amoebasisters.com/about-us.html We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: https://openstax.org/details/books/biology We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube's community guidelines https://www.youtube.com/yt/policyandsafety/communityguidelines.html and YouTube's policy center https://support.google.com/youtube/topic/2676378?hl=en&ref_topic=6151248. We also reserve the right to remove comments with vulgar language. Music is this video is listed free to use/no attribution required from the YouTube audio library https://www.youtube.com/audiolibrary/music?feature=blog We have YouTube's community contributed subtitles feature on to allow translations for different languages. YouTube automatically credits the different language contributors below (unless the contributor had opted out of being credited). We are thankful for those that contribute different languages. If you have a concern about community contributed contributions, please contact us.
Views: 1315577 Amoeba Sisters
Mitosis, Meiosis and Sexual Reproduction
 
18:24
Mitosis, meiosis and sexual reproduction. Understanding gametes, zygotes, and haploid / diploid numbers.
Views: 1013373 Khan Academy
¿Cuál es la diferencia entre genes y cromosomas? | Dr. Pasqualini
 
02:31
En biología, se denomina cromosoma (del griego χρώμα, -τος chroma, color y σώμα, -τος soma, cuerpo o elemento) a cada uno de los pequeños cuerpos en forma de bastoncillos en que se organiza la cromatina del núcleo celular durante las divisiones celulares (mitosis y meiosis). En las células eucariotas y en las arqueas (a diferencia que en las bacterias), el ADN siempre se encontrará en forma de cromatina, es decir asociado fuertemente a unas proteínas denominadas histonas. Este material se encuentra en el núcleo de las células eucariotas y se visualiza como una maraña de hilos delgados. Cuando el núcleo celular comienza el proceso de división (cariocinesis), esa maraña de hilos inicia un fenómeno de condensación progresivo que finaliza en la formación de entidades discretas e independientes: los cromosomas. Por lo tanto, cromatina y cromosoma son dos aspectos morfológicamente distintos de una misma entidad celular. http://es.wikipedia.org/wiki/Cromosoma
GENETICS 3: CHROMOSOMES: TRANSPOSONS
 
01:12
CHROMOSOMES: TRANSPOSONS
Views: 658 Walter Jahn
Célula e DNA
 
01:23
Exposição genômica ^^
Views: 312 monicaakinaga
(OLD VIDEO) Prokaryotes and Eukaryotes
 
05:53
Video has been redone here: https://youtu.be/Pxujitlv8wc. Music in this video used with permission from Adrian Holovaty (http://www.youtube.com/adrianholovaty). Support us on Patreon! http://www.patreon.com/amoebasisters Our FREE resources: GIFs: http://www.amoebasisters.com/gifs.html Handouts: http://www.amoebasisters.com/handouts.html Comics: http://www.amoebasisters.com/parameciumparlorcomics Connect with us! Website: http://www.AmoebaSisters.com Twitter: http://www.twitter.com/AmoebaSisters Facebook: http://www.facebook.com/AmoebaSisters Tumblr: http://www.amoebasisters.tumblr.com Pinterest: http://www.pinterest.com/AmoebaSister­s Instagram: https://www.instagram.com/amoebasistersofficial/ Visit our Redbubble store at http://www.amoebasisters.com/store.html The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching science at the high school level. Pinky's teacher certification is in grades 4-8 science and 8-12 composite science (encompassing biology, chemistry, and physics). Amoeba Sisters videos only cover concepts that Pinky is certified to teach. For more information about The Amoeba Sisters, visit: http://www.amoebasisters.com/about-us.html We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: https://openstax.org/details/books/biology We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube's community guidelines https://www.youtube.com/yt/policyandsafety/communityguidelines.html and YouTube's policy center https://support.google.com/youtube/topic/2676378?hl=en&ref_topic=6151248. We also reserve the right to remove comments with vulgar language.
Views: 678557 Amoeba Sisters
Alternative Transposition Generates New Genes by Exon Shuffling
 
02:46
A new mechanism of the generation of new genes is presented in the animation. Ac/Ds transposition requires a pair of one Ac/Ds 5′ end and one Ac/Ds 3′ end. In standard transposition, the Ac/Ds 5′ and 3′ ends are part of a single transposon, and the outcome of transposition is the excision of the element from a donor site and insertion into a target site. However, transposition reactions can also involve the 5′ and 3′ ends of different Ac/Ds elements, which can be in either a direct or reversed orientation with respect to each other. These alternative transposition events can generate deletions, duplications, inversions, reciprocal translocations, and other sequence rearrangements. These chromosomal rearrangements can generate new chimeric genes and alter the expression of genes near the breakpoint, which could promote the fixation of chromosomal rearrangements during evolution. This work is published in PLoS Genet. 2006 October; 2(10): e164. http://www.plosgenetics.org/article/info%3Adoi%2F10.1371%2Fjournal.pgen.0020164 The animation is for a contest held on the website http://www.ChloroFilms.org.
Views: 10615 PlantGenetics
adn-dna.net 0161 Mitosis
 
02:47
Recurso educativo del aula virtual de ciencias de la naturaleza http://www.adn-dna.net/ (acceso libre y gratuito) © Vídeo de YouTube
Views: 746 adn-dna.net
Prokaryotic vs eukaryotic
 
03:08
Comparison of the two cell types
Views: 92004 DocHayes
A Tour of the Cell
 
14:17
Paul Andersen takes you on a tour of the cell. He starts by explaining the difference between prokaryotic and eukaryotic cells. He also explains why cells are small but not infinitely small. He also explains how the organelles work together in a similar fashion. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Intro Music Atribution Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License
Views: 2431880 Bozeman Science
17 Lynn Margulis Symposium Bateson
 
25:04
Dr. Mary Catherine Bateson is a writer and cultural anthropologist. She has taught at Harvard, Amherst, Spelman, and George Mason University and also in Iran and the Philippines. Bateson's books include With a Daughter's Eye: A Memoir of Margaret Mead and Gregory Bateson and the best-selling Composing a Life. Her most recent book, Composing a Further Life: The Age of Active Wisdom, appeared in 2010. She lives in Hancock, NH and is a visiting scholar at Boston College's Sloan Center for research on work in retirement.
Views: 3180 James MacAllister
QUE RELACION EXISTE ENTRE GEN, CROMOSOMAS Y ADN
 
01:25
Realizado por: -Darly Pinzon -Valentina Torres 901 JT
Views: 260 DARLY PINZON
GENES Y ADN
 
02:42
AKI LES DEJO EL SEGUNDO VIDEO ESTE QUEDEO UN POKO MEJOR YA ESTOY APRENDIENDO GRACIAS ATTE: EL JULIO
Views: 119 MrJULIOHOOLIGAN
Duplicacion bidireccional del ADN
 
00:42
http://profesenvideo.blogspot.com.ar/
Views: 572 Profes en Video
Uptakemovie+audio.mp4
 
02:50
How Haemophilus influenzae bacteria take up DNA, by Rosie Redfield.
Views: 1114 Rosie Redfield
Mutación Genetica
 
00:39
Para más información, visite CancerQuest en http://www.cancerquest.org/es/mutation-summary. Una animación de 3D que presenta algunas causas del cambio genético (mutación). Mutaciones en genes claves puede resultar en cáncer. To view this video in Enlglish, visit http://www.youtube.com/watch?v=0wrNxCGKCws Visite, http://www.cancerquest.org/es/
Views: 44233 CancerQuest
Conferencias: Simbiosis y evolución: homenaje a Lynn Margulis. (1a. Parte) Abril 17, 2017. 18:00 h.
 
03:09:57
Lunes 17 de abril Moderador: Arturo Becerra Bracho (Facultad de Ciencias, UNAM) Introducción: Lynn Margulis y el origen de los eucariontes Antonio Lazcano Araujo (miembro de El Colegio Nacional) Simbiosis y evolución Amparo Latorre (Universidad de Valencia) Las eucariotas más antiguas (The oldest eukaryotes) Emmanuelle Javaux (Universidad de Lieja)
Views: 4571 elcolegionacionalmx
El primer cromosoma artificial eucariota, con Jef Boeke
 
10:05
Entrevista on Jef Boeke, of the Institute for Systems Genetics at New York University's Langone Medical Center. Un equipo internacional de científicos ha logrado crear un cromosoma eucariota en el laboratorio. En concreto, han sintetizado el de la levadura Saccharomyces cerevisiae, con el que se fabrica el pan, la cerveza y el vino. Este logro supone un gran paso en el campo de la biología sintética que permitirá el diseño de microorganismos para producir nuevos medicamentos, materias primas para la alimentación y biocombustibles. [texto de AgenciaSINC]
Views: 958 Luis Quevedo

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