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Mapping a new mutation on the same chromosome as the mapping genes: Scenario 1 1. If the m mutation is in a gene on the same chromosome as a and b, as shown here, what would be the expected genotype(s) and phenotypes of the F1 individuals? m + enk m m + + F1 + + + + a a b b

Mapping a new mutation on the same chromosome as the mapping genes: Scenario 1 1. If the m mutation is in a gene on the same chromosome as a and b, as shown here, what would be the expected genotype(s) and phenotypes of the F1 individuals? m + enk m m + + F1 + + + + a a b b

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Mapping a new mutation on the same chromosome as the mapping genes: Scenario 1 1. If the m mutation is in a gene on the same chromosome as a and b, as shown here, what would be the expected genotype(s) and phenotypes of the F1 individuals? m+b +a+ + m++ +ab Scenario 1: emk 2. If individuals from this F1 generation self-fertilize, what genotypes and phenotypes of progeny would you expect in the F2 generation? Assume that the m, a, and b genes are all linked but you don't need to calculate exact frequencies of each genotype/phenotype. Parental gametes will be m++ or +ab Recombinant metes will be m+b or +a+ if there is a crossover between a and b Or mab and +++ if there is a crossover between m and a The most common categories will be combinations with the parental gametes +a+ wild-type m+b M-only +ab wild-type m++ M-only mab M-only +++ wild-type +a+ +a+ A-only m+b B-only +ab AB m++ wild-type mab AB +++ wild-type +a+ wild-type m+b MB mab MB +++ wild-type A-only m+b wild-type mab A-only +++ wild-type + + mab +++ + b +a+ A-only m+b MB mab MAB +++ wild-type +a+ m+b mab +++ m wild-type m + + + F1 + + a a b b
Transcribed Image Text:Mapping a new mutation on the same chromosome as the mapping genes: Scenario 1 1. If the m mutation is in a gene on the same chromosome as a and b, as shown here, what would be the expected genotype(s) and phenotypes of the F1 individuals? m+b +a+ + m++ +ab Scenario 1: emk 2. If individuals from this F1 generation self-fertilize, what genotypes and phenotypes of progeny would you expect in the F2 generation? Assume that the m, a, and b genes are all linked but you don't need to calculate exact frequencies of each genotype/phenotype. Parental gametes will be m++ or +ab Recombinant metes will be m+b or +a+ if there is a crossover between a and b Or mab and +++ if there is a crossover between m and a The most common categories will be combinations with the parental gametes +a+ wild-type m+b M-only +ab wild-type m++ M-only mab M-only +++ wild-type +a+ +a+ A-only m+b B-only +ab AB m++ wild-type mab AB +++ wild-type +a+ wild-type m+b MB mab MB +++ wild-type A-only m+b wild-type mab A-only +++ wild-type + + mab +++ + b +a+ A-only m+b MB mab MAB +++ wild-type +a+ m+b mab +++ m wild-type m + + + F1 + + a a b b
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