8. In gerbils, the gene that specifies coat color is sex-linked and has multiple alleles, as follows: B-black, br - brown, by - yellow, and b - albino. The allele br is incompletely dominant over by, the combination br by giving tan color; otherwise, dominance is in the order given -- B, br, by, b. (For your information, gerbils are mammals.) www A black gerbil mated with a yellow gerbil gave one brown male and one black female offspring. a. What is the sex of the black parent? b. What is the genotype of the brown offspring? c. If the two offspring were to mate with each other, what is the probability that they will have a yellow offspring? d. If the two offspring were to mate with each other, what is the probability that the first three female offspring will be black? e. If the brown offspring were to mate with his mother, what is the probability that the first two offspring will be brown males?
8. In gerbils, the gene that specifies coat color is sex-linked and has multiple alleles, as follows: B-black, br - brown, by - yellow, and b - albino. The allele br is incompletely dominant over by, the combination br by giving tan color; otherwise, dominance is in the order given -- B, br, by, b. (For your information, gerbils are mammals.) www A black gerbil mated with a yellow gerbil gave one brown male and one black female offspring. a. What is the sex of the black parent? b. What is the genotype of the brown offspring? c. If the two offspring were to mate with each other, what is the probability that they will have a yellow offspring? d. If the two offspring were to mate with each other, what is the probability that the first three female offspring will be black? e. If the brown offspring were to mate with his mother, what is the probability that the first two offspring will be brown males?
Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter12: Mendel, Genes, And Inheritance
Section12.2: Later Modifications And Additions To Mendel’s Principles
Problem 2SB: A true-breeding rabbit with agouti (mottled, grayish brown) fur crossed with a true-breeding rabbit...
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