Question

What determines which sex will result in offspring of birds and mammals?

a) The female's genetics
b) The male's genetics
c) A combination of both male and female genetics
d) Environmental factors

Answer 1

The sex of offspring in birds and mammals is determined by a combination of both male and female genetics.

Step-by-step explanation:

In birds and mammals, the sex of the offspring is determined by the genetics of both the male and female.

In mammals, females have two X chromosomes (XX), while males have one X and one Y chromosome (XY). In birds, females have two Z chromosomes (ZZ), while males have one Z and one W chromosome (ZW).

Therefore, the correct answer is c) A combination of both male and female genetics.