In fruit flies and humans, sex is determined by an X-Y system. However, many organisms do not have the X-Y system of sex determination just like in birds. Instead, they have the Z-W system. Male birds are ZZ whereas, female birds are ZW. In chickens, barred feathers (ZB) are dominant over nonbarred feathers (Zb). If a barred female chicken mates a nonbarred male chicken, what is the probability of having barred female offspring? 50% 0% 25% 100%
In fruit flies and humans, sex is determined by an X-Y system. However, many organisms do not have the X-Y system of sex determination just like in birds. Instead, they have the Z-W system. Male birds are ZZ whereas, female birds are ZW. In chickens, barred feathers (ZB) are dominant over nonbarred feathers (Zb). If a barred female chicken mates a nonbarred male chicken, what is the probability of having barred female offspring? 50% 0% 25% 100%
Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter7: Development And Sex Determination
Section: Chapter Questions
Problem 9QP
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In fruit flies and humans, sex is determined by an X-Y system. However, many organisms do not have the X-Y system of sex determination just like in birds. Instead, they have the Z-W system. Male birds are ZZ whereas, female birds are ZW. In chickens, barred feathers (ZB) are dominant over nonbarred feathers (Zb). If a barred female chicken mates a nonbarred male chicken, what is the probability of having barred female offspring?
50%
0%
25%
100%
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