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A gene for sweat gland production is found on the X chromosome. If a man who lacks sweat glands marries a woman who has normal sweat glands, what will be the phenotype of their children?A. All of the boys will lack sweat glands.B. All of the girls will lack sweat glands.C. The girls will have sweat glands in some areas, but lack sweat glands in others.D. All of the boys will have sweat glands.E. All the boys will have sweat glands, and the girls will have sweat glands in some areas but not others.

Respuesta :

Answer:

Option D, All of the boys will have sweat glands

Step-by-step explanation:

Given -

Gene for sweat gland production is found on the X chromosome

Genotype of man - lacks sweat glands (XY)

Genotype of women - has normal sweat glands (X'X')

X' -  sweat glands

X - no sweat glands

This is an X linked recessive trait

If these two mates, then the all males will have sweat glands

X'X' * XY ---> X'X, X'X, X'Y, X'Y

Option D, All of the boys will have sweat glands

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