Question

Suppose that a female undergoes sex reversal to become a functional male and is then mated to a normal female. Determine the expected $F_1$ sex ratios from such matingsin species with $XY$ method of sex determination.

• A. 2 female : 1 male
• B. 1 female : 2 male
• C. All female
• D. All male

Answer 1

The correct option is C All female

If female undergoes sex reversal and become male its sex chromosome will be the same XX. On mating with a normal female which also XX, then all children will be female.

so correct answer is C, all female.