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Recombination Frequency and Linked Genes
 
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recombination, crossing over, linked genes, Morgan, genetics
Views: 63552 John Chapman
Genetic Recombination and Gene Mapping
 
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In this video Paul Andersen explains how the frequency of recombination between linked genes can be used to determine the relative location of genes on a chromosome. Thomas Hunt Morgan and Alfred Strutevant used the fruit fly to develop a theory of chromosomal inheritance and discover crossing over. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: "File:Drosophila Repleta Lateral.jpg." Wikipedia, the Free Encyclopedia. Accessed March 13, 2014. http://en.wikipedia.org/wiki/File:Drosophila_repleta_lateral.jpg. "File:Morgan Crossover 1.jpg." Wikipedia, the Free Encyclopedia. Accessed March 13, 2014. http://en.wikipedia.org/wiki/File:Morgan_crossover_1.jpg. "File:Thomas Hunt Morgan.jpg." Wikipedia, the Free Encyclopedia. Accessed March 13, 2014. http://en.wikipedia.org/wiki/File:Thomas_Hunt_Morgan.jpg. "FlyBase," n.d. http://flybase.org/reports/FBgn0003975.html. spax89. Illustration of a Tobacco Pipe, 2009. Extracted from Media:Blason de la ville de Saint-Quentin-la-Poterie (30).svg. http://commons.wikimedia.org/wiki/File:Tobacco_pipe.svg.
Views: 659257 Bozeman Science
Gene Mapping, Percent Recombination and Map Units
 
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Donate here: http://www.aklectures.com/donate.php Website video link: http://www.aklectures.com/lecture/gene-mapping-percent-recombination-and-map-units Facebook link: https://www.facebook.com/aklectures Website link: http://www.aklectures.com
Views: 112133 AK LECTURES
Genetics: Linkage Problem #1: Map Distance, Coefficient of Coincidence, and Interference
 
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In this video, we explore a linkage problem in genetics in which we determine the central gene, calculate map distances, and calculate coefficient of coincidence and interference.
Views: 21583 Catalyst University
Determining the Order of Linked Genes on a Chromosome
 
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This lesson shows how to determine the order genes on a chromosome and the relative distance between the genes on a chromosome using recombination frequency data.
Views: 6227 Tom Koch
Linkage mapping problem three point cross | CSIR NET analytical practice problems in part c
 
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Linkage mapping problem three point cross - This lecture explains about the Linkage mapping problems on three point cross. This video will teach you how to solve the linkage mapping problem when the data set given contains equal number of parental and recombinant offspring in it. Stay tuned to know the tricks to solve three point cross problems in linkage mapping also known as gene mapping. Watch this video to answer csir net analytical questions in part c. For more information, log on to- http://www.shomusbiology.com/ Get Shomu's Biology DVD set here- http://www.shomusbiology.com/dvd-store/ Download the study materials here- http://shomusbiology.com/bio-materials.html Remember Shomu’s Biology is created to spread the knowledge of life science and biology by sharing all this free biology lectures video and animation presented by Suman Bhattacharjee in YouTube. All these tutorials are brought to you for free. Please subscribe to our channel so that we can grow together. You can check for any of the following services from Shomu’s Biology- Buy Shomu’s Biology lecture DVD set- www.shomusbiology.com/dvd-store Shomu’s Biology assignment services – www.shomusbiology.com/assignment -help Join Online coaching for CSIR NET exam – www.shomusbiology.com/net-coaching We are social. Find us on different sites here- Our Website – www.shomusbiology.com Facebook page- https://www.facebook.com/ShomusBiology/ Twitter - https://twitter.com/shomusbiology SlideShare- www.slideshare.net/shomusbiology Google plus- https://plus.google.com/113648584982732129198 LinkedIn - https://www.linkedin.com/in/suman-bhattacharjee-2a051661 Youtube- https://www.youtube.com/user/TheFunsuman Thank you for watching the CSIR NET analytical problems on Linkage mapping problem three point cross.
Views: 27649 Shomu's Biology
Linkage Mapping Part 3: Recombination Frequency and Genetic Distance, 2 loci
 
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Goes with Genetics - Brooker Chapter 6 Linkage mapping a two-factor cross. Figuring out recombination frequency and genetic distance between two genetic loci For Dr. Rivera's Genetics class at University of the Pacific http://www.pacific.edu Made with CamStudio and SmoothDraw
Views: 5273 ariverapacific
Genetics! Gene mapping in 4 steps!
 
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Gene mapping, describes the methods used to identify the locus of a gene and the distances between genes.[1] Genetic linkage was first discovered by the British geneticists William Bateson, Edith Rebecca Saunders and Reginald Punnett shortly after Mendel's laws were rediscovered.[1][2] The understanding of genetic linkage was expanded by the work of Thomas Hunt Morgan. Morgan's observation that the amount of crossing over between linked genes differs led to the idea that crossover frequency might indicate the distance separating genes on the chromosome. Alfred Sturtevant, a student of Morgan's, first developed genetic maps, also known as linkage maps. Sturtevant proposed that the greater the distance between linked genes, the greater the chance that non-sister chromatids would cross over in the region between the genes. By working out the number of recombinants it is possible to obtain a measure for the distance between the genes. This distance is expressed in terms of a genetic map unit (m.u.), or a centimorgan and is defined as the distance between genes for which one product of meiosis in 100 is recombinant. A recombinant frequency (RF) of 1% is equivalent to 1 m.u. But this equivalence is only a good approximation for small percentages; the largest percentage of recombinants cannot exceed 50%, which would be the situation where the two genes are at the extreme opposite ends of the same chromosomes. In this situation, any crossover events would result in an exchange of genes, but only an odd number of crossover events (a 50-50 chance between even and odd number of crossover events) would result in a recombinant product of meiotic crossover. A statistical interpretation of this is through the Haldane mapping function or the Kosambi mapping function, among others. A linkage map is created by finding the map distances between a number of traits that are present on the same chromosome, ideally avoiding having significant gaps between traits to avoid the inaccuracies that will occur due to the possibility of multiple recombination events. The essence of all genome mapping is to place a collection of molecular markers onto their respective positions on the genome. Molecular markers come in all forms. Genes can be viewed as one special type of genetic markers in the construction of genome maps, and mapped the same way as any other markers. the 1976 copyright act entitles fair use for non profit educational purposes
Views: 58552 Thomas Underhill
Gene mapping | Biomolecules | MCAT | Khan Academy
 
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Created by Efrat Bruck. Watch the next lesson: https://www.khanacademy.org/test-prep/mcat/biomolecules/chromosomal-inheritance/v/extranuclear-inheritance-1?utm_source=YT&utm_medium=Desc&utm_campaign=mcat Missed the previous lesson? https://www.khanacademy.org/test-prep/mcat/biomolecules/chromosomal-inheritance/v/genetic-recombination-2?utm_source=YT&utm_medium=Desc&utm_campaign=mcat MCAT on Khan Academy: Go ahead and practice some passage-based questions! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s MCAT channel: https://www.youtube.com/channel/UCDkK5wqSuwDlJ3_nl3rgdiQ?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 217829 khanacademymedicine
Genetics: Linkage Problem #2: Map Distance, Coefficient of Coincidence, and Interference
 
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In this video, we explore another linkage problem in genetics in which we determine the central gene, calculate map distances, and calculate coefficient of coincidence and interference. To see our first linkage problem, click the link below. First Linkage Problem: https://youtu.be/l7iOQDZsY7c
Views: 5431 Catalyst University
Linked Genes, Crossing Over and Genetic Recombination
 
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Donate here: http://www.aklectures.com/donate.php Website video link: http://www.aklectures.com/lecture/linked-genes-crossing-over-and-genetic-recombination Facebook link: https://www.facebook.com/aklectures Website link: http://www.aklectures.com
Views: 146748 AK LECTURES
Gene linkage and recombination frequency
 
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The Background Gregor Mendel analyzed the pattern of inheritance of seven pairs of contrasting traits in the domestic pea plant. He did this by cross-breeding dihybrids; that is, plants that were heterozygous for the alleles controlling two different traits. Example Producing dihybrids (F1) He mated a variety that was pure-breeding (hence homozygous) for round (RR), yellow (YY) seeds with one that was pure-breeding for wrinkled (rr), green (yy) seeds. All the offspring (F1) produced from this mating were dihybrids; that is, heterozygous for each pair of alleles (RrYy). Furthermore, all the seeds were round and yellow, showing that the genes for round and yellow are dominant. Mating the dihybrids to produce an F2 generation Mendel then crossed these dihybrids. If it is inevitable that round seeds must always be yellow and wrinkled seeds must be green, then he would have expected that this would produce a typical monohybrid cross: 75% round-yellow; 25% wrinkled-green. But, in fact, his mating generated seeds that showed all possible combinations of the color and texture traits. 9/16 of the offspring were round-yellow 3/16 were round-green 3/16 were wrinkled-yellow, and 1/16 were wrinkled-green Finding in every case that each of his seven traits was inherited independently of the others, he formed his "second rule" the Rule of Independent Assortment: The inheritance of one pair of factors (genes) is independent of the inheritance of the other pair. Today we know that this rule holds only if two conditions are met: the genes are on separate chromosomes or the genes are widely separated on the same chromosome. Mendel was lucky in that every pair of genes he studied met one requirement or the other.
Linkage Map - Calculating Recombination Frequency and Map Units
 
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Linkage Map - Calculating Recombinant Frequency and Map Units
Views: 22778 Bree Penninger
Linkage Mapping Problems : To find the Correct gene order (Three point cross PART-I)
 
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This video lecture talks about linkage mapping problems and how to solve the correct gene order in the chromosome. For more information, log on to- https://www.facebook.com/ashokeszoology/ Category Education
Views: 44491 Ashokes Zoology
Three-point mapping and gene order
 
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Note that I made a mistake at the end of the video when summing the numbers of recombinant types: I switched the totals of the B-C and A-C columns. The real calculation of recombinants for B-C is 261, and for A-C is 482. Thus, the genetic distances that should be calculated are: A-B (19.92 cM), B-C (21.75 cM), and A-C (40.16 cM). 00:00 Introduction; review of two-point genetic mapping 00:48 Three-point mapping calculates three genetic distances at once 05:48 Experimental analysis of F2 generation data 07:19 Identifying the recombinant haplotypes 11:36 Calculating individual interval genetic distances (A-B, A-C, B-C) 14:43 For the next class
Views: 39857 Joseph Ross
Linkage mapping problem   three point cross
 
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This gene mapping problem video will teach you how to map eukaryotic gene with double crossover by using recombination frequency formula. For more information, log on to- http://shomusbiology.weebly.com/ Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html
Views: 66945 Shomu's Biology
Genetic recombination 1 | Biomolecules | MCAT | Khan Academy
 
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Created by Efrat Bruck. Watch the next lesson: https://www.khanacademy.org/test-prep/mcat/biomolecules/chromosomal-inheritance/v/genetic-recombination-2?utm_source=YT&utm_medium=Desc&utm_campaign=mcat Missed the previous lesson? https://www.khanacademy.org/test-prep/mcat/biomolecules/chromosomal-inheritance/v/punnett-square-fun?utm_source=YT&utm_medium=Desc&utm_campaign=mcat MCAT on Khan Academy: Go ahead and practice some passage-based questions! About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s MCAT channel: https://www.youtube.com/channel/UCDkK5wqSuwDlJ3_nl3rgdiQ?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 155023 khanacademymedicine
How to solve Linkage mapping problem
 
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Solve Linkage mapping problem quickly
Gene mapping part 2 Linkage mapping
 
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Gene mapping lecture - This lecture explains about the linkage mapping methods. http://shomusbiology.weebly.com/ Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html Gene mapping, also called genome mapping, is the creation of a genetic map assigning DNA fragments to chromosomes.[1] When a genome is first investigated, this map is nonexistent. The map improves with the scientific progress and is perfect when the genomic DNA sequencing of the species has been completed. During this process, and for the investigation of differences in strain, the fragments are identified by small tags. These may be genetic markers (PCR products) or the unique sequence-dependent pattern of DNA-cutting enzymes. The ordering is derived from genetic observations (recombinant frequency) for these markers or in the second case from a computational integration of the fingerprinting data. The term "mapping" is used in two different but related contexts. Two different ways of mapping are distinguished. Genetic mapping uses classical genetic techniques (e.g. pedigree analysis or breeding experiments) to determine sequence features within a genome. Using modern molecular biology techniques for the same purpose is usually referred to as physical mapping. Source of the article published in description is Wikipedia. I am sharing their material. Copyright by original content developers of Wikipedia. Link- http://en.wikipedia.org/wiki/Main_Page
Views: 76382 Shomu's Biology
Genetics! interference example problem
 
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Sorry the volume gets fucked up, I usually smooth before I upload In genetics, the coefficient of coincidence (c.o.c.) is a measure of interference in the formation of chromosomal crossovers during meiosis. It is generally the case that, if there is a crossover at one spot on a chromosome, this decreases the likelihood of a crossover in a nearby spot.[1] This is called interference. The coefficient of coincidence is typically calculated from recombination rates between three genes. If there are three genes in the order A B C, then we can determine how closely linked they are by frequency of recombination. Knowing the recombination rate between A and B and the recombination rate between B and C, we would naively expect the double recombination rate to be the product of these two rates. The coefficient of coincidence is calculated by dividing the actual frequency of double recombinants by this expected frequency:[1] c.o.c. = actual double recombinant frequency / expected double recombinant frequency Interference is then defined as follows:[1] interference = 1 − c.o.c. This figure tells us how strongly a crossover in one of the DNA regions (AB or BC) interferes with the formation of a crossover in the other region the 1976 copyright act entitles fair use of copyrighted material for non profit educational purposes and is extended under the DMCA
Views: 15214 Thomas Underhill
Gene Linkage Practice Question (IB Biology)
 
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Gene Linkage Practice Question (IB Biology)
Views: 37407 Alex Lee
Linked genes and chromosome mapping
 
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This is one of a series of videos on genetics. In this video, linked genes and chromosome mapping will be discussed and demonstrated.
Views: 42565 BiologyMonk
Gene frequency
 
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This tutorial explains what is gene frequency or allele frequency and the role of gene frequency in determining natural selection according to hardy and Weinberg principle. For more information, log on to- http://shomusbiology.weebly.com/ Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html
Views: 28609 Shomu's Biology
Dihybrid Crosses and Linked Genes.mov
 
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Biology teacher Andrew Douch (Douchy) Explains how to determine from a dihybrid test cross, whether two gene loci are linked or assort independently.
Views: 77974 Andrew Douch
Introduction to gene mapping (gene mapping part 1)
 
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This lecture explains about the introduction to gene mapping. http://shomusbiology.weebly.com/ Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html Gene mapping, also called genome mapping, is the creation of a genetic map assigning DNA fragments to chromosomes.[1] When a genome is first investigated, this map is nonexistent. The map improves with the scientific progress and is perfect when the genomic DNA sequencing of the species has been completed. During this process, and for the investigation of differences in strain, the fragments are identified by small tags. These may be genetic markers (PCR products) or the unique sequence-dependent pattern of DNA-cutting enzymes. The ordering is derived from genetic observations (recombinant frequency) for these markers or in the second case from a computational integration of the fingerprinting data. The term "mapping" is used in two different but related contexts. Two different ways of mapping are distinguished. Genetic mapping uses classical genetic techniques (e.g. pedigree analysis or breeding experiments) to determine sequence features within a genome. Using modern molecular biology techniques for the same purpose is usually referred to as physical mapping. Source of the article published in description is Wikipedia. I am sharing their material. Copyright by original content developers of Wikipedia. Link- http://en.wikipedia.org/wiki/Main_Page
Views: 154677 Shomu's Biology
How to calculate allele frequency?
 
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Allele frequency, or gene frequency, is the relative frequency of an allele (variant of a gene) at a particular locus in a population, expressed as a fraction or percentage. Specifically, it is the fraction of all chromosomes in the population that carry that allele. The allele frequency is distinct from the genotype frequency, although they are related, and allele frequencies can be calculated from genotype frequencies. In population genetics, allele frequencies are used to describe the amount of variation at a particular locus or across multiple loci. When considering the ensemble of allele frequencies for a large number of distinct loci, their distribution is called the allele frequency spectrum.
Determining the Map Distance Between Genes
 
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This video tutorial accompanies Chapter 9 of 'Genetics: Genes, Genomes, and Evolution' by Meneely, Hoang, Okeke, and Heston. https://global.oup.com/academic/product/genetics-9780198712558 © Oxford University Press
GENETIC MAPPING | LINKAGE MAP | RECOMBINATION FREQUENCY| PART-2
 
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It is the mapping of genes on chromosomes. Also known as linkage map or chromosome map. Alfred Sturtevant first construct a genetic map. The unit of measurement for genetic linkage is known as map unit or centimorgan. There are several significant aspects that are linked with genetic mapping, some of the key aspects includes, finding genetic markers, forensic science, environment and energy management, tracing genetic disorder related genes, etc. Recombination frequency is the number that determine the crossing over or recombinants during a cross over event in meiosis. For More Information & Queries Do Like My Facebook Page https://www.facebook.com/tanejanehaofficial
GENE ORDER | GENE DISTANCE | GENETIC MAPPING | PART-3
 
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Finding gene order and map distance provides more appropriate evidences for proper linkage mapping. There are certain formulas that need to be used for solving genetic problems relevant to genetic mapping. For More Information & Queries Do Like My Facebook Page https://www.facebook.com/tanejanehaofficial
Two point cross
 
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For more information, log on to- http://shomusbiology.weebly.com/ This video tutorial explains two point cross type of linkage mapping and the how to solve it. Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html
Views: 36068 Shomu's Biology
linkage mapping of 6 genes
 
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Gene mapping lecture - linkage mapping of 6 genes http://shomusbiology.weebly.com/ This video lecture explains the linkage mapping of 6 different genes and how to construct a linkage map of may genes using recombination frequency. Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html
Views: 11481 Shomu's Biology
Hardy-Weinberg Equation
 
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In this video Paul Andersen explains the elements in the Hardy-Weinberg equation; including the allele frequency and phenotype frequency. He begins with a brief explanation of phenotypes and genotypes. A sample problem is worked out and another problem is included. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: 76, Nobbler. Green Check Mark with Shadow, [object HTMLTableCellElement]. Own work. http://commons.wikimedia.org/wiki/File:Checkmark.svg. Gerald_G. Boy Face Cartoon, n.d. http://openclipart.org/detail/860/boy-face-cartoon-by-gerald_g-860.
Views: 319230 Bozeman Science
Explaining Recombination Frequencies & Linkage Gene Mapping (Part 2)
 
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Mr. Lima reviews gene linkage through chromosomes and how crossing over breaks it, as well as sources for genetic variation through meiosis. He then explains how the linkage maps technique developed by Alfred Stuertvant works and how chromosomal structure and the distance between genes within a chromosome can explain crossing over patterns that lead to different recombination frequencies between a set of genes.
Views: 48775 scienceclassisgreat
Genetic distance and two-point mapping
 
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00:00 Introduction and questions related to genetic mapping 01:00 Mapping cross (dihybrid testcross) 02:59 Goal: identify the gamete haplotypes produced by a dihybrid 04:08 Recombination 04:31 Example problem 5:22 Parental and recombinant type haplotypes 7:32 Calculating genetic distance 8:15 Units of genetic distance 9:37 Future questions 10:14 Genetic distances are additive
Views: 5073 Joseph Ross
Explaining Recombination Frequencies & Linkage Gene Mapping (Part 1)
 
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Mr. Lima reviews gene linkage through chromosomes and how crossing over breaks it, as well as sources for genetic variation through meiosis. He then explains how the linkage maps technique developed by Alfred Stuertvant works and how chromosomal structure and the distance between genes within a chromosome can explain crossing over patterns that lead to different recombination frequencies between a set of genes. (TO UNDERSTAND HOW TO CALCULATE RECOMBINATION FREQUENCIES FOR A PAIR OF TRAITS, WATCH VIDEO: -Studying Gene Linkage in Fruit Flies-)
Views: 26895 scienceclassisgreat
Interference and Coincidence | Biology | Chegg Tutors
 
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In most of the higher organisms, the formation of one chiasma actually reduces the probability of another chiasma forming in an immediately adjacent region of the chromosome. This reduction in chiasma formation may be simplistically thought of as being due to a physical inability of the chromatids to bend back upon themselves within certain minimum distances. The net result of this interference is the observation of fewer double-crossover types than would be expected according to map distances. The strength of interference varies in different segments of the chromosome and is usually expressed in terms of a coefficient of coincidence, or the ratio between the observed and the expected double crossovers. Coefficient of coincidence = % observed double crossovers / % expected double crossovers Coincidence is the complement of interference. Coincidence + Interference = 1.0 When interference is complete (1.0), no double crossovers will be observed and coincidence becomes zero. When we observe all the double crossovers expected, coincidence is unity and interference becomes zero. When interference is 30% operative, coincidence becomes 70%, etc. ---------- Biology tutoring on Chegg Tutors Learn about Biology terms like Interference and Coincidence on Chegg Tutors. Work with live, online Biology tutors like Jonathan G. who can help you at any moment, whether at 2pm or 2am. Liked the video tutorial? Schedule lessons on-demand or schedule weekly tutoring in advance with tutors like Jonathan G. Visit https://www.chegg.com/tutors/Biology-online-tutoring/?utm_source=youtube&utm_medium=video&utm_content=managed&utm_campaign=videotutorials ---------- About Jonathan G., Biology tutor on Chegg Tutors: University of Pennsylvania, Class of 2014 Pre-Med/Biology major Subjects tutored: SAT II Chemistry, Medicine, Basic Science, MCAT, ACT (science), Geometry, College Admissions, Basic Math, Astronomy, Chemistry, Algebra, Environmental Science, Physics, Trigonometry, Resume Writing, Study Skills, Biology, Astrophysics, SAT II Physics, Pre-Calculus, Pre-Algebra, SAT II Biology E/M, and Biochemistry TEACHING EXPERIENCE I have been tutoring since 11th grade in high school in the sciences and math. Throughout college at the University of Pennsylvania, I tutored many students in Physics (General Physics Semesters 1 & 2), General Biology, Molecular Biology, Genetics, Biochemistry, Cellular Biology, Cancer Biology, Physiology, General Chemistry (1 & 2), and Organic Chemistry (1 & 2). I have an extremely strong background in the biological sciences, physical sciences, and math. I currently tutor at the high school and college level. Over the years I have gained experience in adapting to the learning habits of many students. Each student is different and therefore requires a different way of approaching the material. I love helping each student relate to and enjoy even the most difficult subjects in order to make the material easily understood. EXTRACURRICULAR INTERESTS I love to relax and enjoy good company. I have a dog whom I love very much. I am a huge soccer fan and play regularly on the weekends. I have been playing the guitar for 15 years. I jog almost every morning. I consider myself to be pretty easy-going. I enjoy watching movies and TV shows. Some of my favorite TV shows are Modern Family, Parks and Rec, The Big Bang Theory, The Office, It's Always Sunny in Philadelphia, Game of Thrones, Sherlock BBC, and The Flash. Want to book a private lesson with Jonathan G.? Message Jonathan G. at https://www.chegg.com/tutors/online-tutors/Jonathan-G-162548/?utm_source=youtube&utm_medium=video&utm_content=managed&utm_campaign=videotutorials ---------- Like what you see? Subscribe to Chegg's Youtube Channel: http://bit.ly/1PwMn3k ---------- Visit Chegg.com for purchasing or renting textbooks, getting homework help, finding an online tutor, applying for scholarships and internships, discovering colleges, and more! https://chegg.com ---------- Want more from Chegg? Follow Chegg on social media: http://instagram.com/chegg http://facebook.com/chegg http://twitter.com/chegg
Views: 14425 Chegg
Gene Mapping, Percent Recombination and Map Units (Part II)
 
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Donate here: http://www.aklectures.com/donate.php Website video link: http://www.aklectures.com/lecture/gene-mapping-percent-recombination-and-map-units-part-ii Facebook link: https://www.facebook.com/aklectures Website link: http://www.aklectures.com
Views: 37453 AK LECTURES
Crossing-over and Map Units Explained
 
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A linkage map (also known as a genetic map) is a table for a species or experimental population that shows the position of its known genes or genetic markers relative to each other in terms of recombination frequency, rather than a specific physical distance along each chromosome.
3 pt testcross
 
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Genetic mapping overview for how to analyze data from a three-point testcross to map linked genes.
Views: 14689 Dr. Marina Crowder
Gene mapping in bacteria | hfr mating problem 1 | CSIR UGC NET exam | practice problems
 
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This bacterial gene mapping lecture explains about Interrupted mating experiment problem and how to map hfr genes and use of hfr strain in bacterial gene mapping. For more information, log on to- http://www.shomusbiology.com/ Get Shomu's Biology DVD set here- http://www.shomusbiology.com/dvd-store/ Download the study materials here- http://shomusbiology.com/bio-materials.html Remember Shomu’s Biology is created to spread the knowledge of life science and biology by sharing all this free biology lectures video and animation presented by Suman Bhattacharjee in YouTube. All these tutorials are brought to you for free. Please subscribe to our channel so that we can grow together. You can check for any of the following services from Shomu’s Biology- Buy Shomu’s Biology lecture DVD set- www.shomusbiology.com/dvd-store Shomu’s Biology assignment services – www.shomusbiology.com/assignment -help Join Online coaching for CSIR NET exam – www.shomusbiology.com/net-coaching We are social. Find us on different sites here- Our Website – www.shomusbiology.com Facebook page- https://www.facebook.com/ShomusBiology/ Twitter - https://twitter.com/shomusbiology SlideShare- www.slideshare.net/shomusbiology Google plus- https://plus.google.com/113648584982732129198 LinkedIn - https://www.linkedin.com/in/suman-bhattacharjee-2a051661 Youtube- https://www.youtube.com/user/TheFunsuman Thank you for watching
Views: 43180 Shomu's Biology
Linkage Mapping Part 1: Introduction to genetic linkage
 
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Defining the terms - genetic distance, linkage, recombination frequency, crossing over. For Dr. Rivera's Genetics class at University of the Pacific http://www.pacific.edu Made with CamStudio and SmoothDraw
Views: 8648 ariverapacific
Gene mapping in E.coli
 
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Lecture on Gene mapping in E.coli. http://shomusbiology.com/ Download the study materials here- http://shomusbiology.com/bio-materials.html Remember Shomu’s Biology is created to spread the knowledge of life science and biology by sharing all this free biology lectures video and animation presented by Suman Bhattacharjee in YouTube. All these tutorials are brought to you for free. Please subscribe to our channel so that we can grow together. You can check for any of the following services from Shomu’s Biology- Buy Shomu’s Biology lecture DVD set- www.shomusbiology.com/dvd-store Shomu’s Biology assignment services – www.shomusbiology.com/assignment -help Join Online coaching for CSIR NET exam – www.shomusbiology.com/net-coaching We are social. Find us on different sites here- Our Website – www.shomusbiology.com Facebook page- https://www.facebook.com/ShomusBiology/ Twitter - https://twitter.com/shomusbiology SlideShare- www.slideshare.net/shomusbiology Google plus- https://plus.google.com/113648584982732129198 LinkedIn - https://www.linkedin.com/in/suman-bhattacharjee-2a051661 Youtube- https://www.youtube.com/user/TheFunsuman Thank you for watching Gene mapping, also called genome mapping, is the creation of a genetic map assigning DNA fragments to chromosomes. When a genome is first investigated, this map is nonexistent. The map improves with the scientific progress and is perfect when the genomic DNA sequencing of the species has been completed. During this process, and for the investigation of differences in strain, the fragments are identified by small tags. These may be genetic markers (PCR products) or the unique sequence-dependent pattern of DNA-cutting enzymes. The ordering is derived from genetic observations (recombinant frequency) for these markers or in the second case from a computational integration of the fingerprinting data. The term "mapping" is used in two different but related contexts. Two different ways of mapping are distinguished. Genetic mapping uses classical genetic techniques (e.g. pedigree analysis or breeding experiments) to determine sequence features within a genome. Using modern molecular biology techniques for the same purpose is usually referred to as physical mapping. Source of the article published in description is Wikipedia. I am sharing their material. © by original content developers of Wikipedia. Link- http://en.wikipedia.org/wiki/Main_Page
Views: 36638 Shomu's Biology
Three Point Cross
 
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This is an example of a three point cross problem with an explanation.
Views: 115036 DK MCAT PREP
Linkage and Recombination, Genetic maps | MIT 7.01SC Fundamentals of Biology
 
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Linkage and Recombination, Genetic maps Instructor: Eric Lander View the complete course: http://ocw.mit.edu/7-01SCF11 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 178967 MIT OpenCourseWare
Genetic Linkage and Mapping
 
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An explanation of genetic linkage using fruit fly traits as examples.
Views: 136508 Aubrey Cahoon
A3Academy: Genetic Recombination
 
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Wallace does some genetic recombination and gene mapping problems (involving zeedonks)! If you enjoyed the video please SUBSCRIBE to stay tuned for other podcasts. And as always, "The more you know ..... the better you are." Like us on Facebook: http://www.facebook.com/a3academy Follow us on Twitter: http://www.twitter.com/A3_Academy Song: "Anyone Out There" by Stan SB
Views: 3132 A3Academy