Q133
The method of sex determination in birds is
A.
XO
B.
XY
C.
ZX
AnswerD.
XA
Answer: Option C
Solution
Answer: Option C
Solution:
The method of sex determination in birds is ZX.The sex chromosomes in birds are designated Z and W, and the male is the homomorphic sex (ZZ) and the female is heteromorphic (ZW). In most avian species the Z chromosome is large, usually the fourth or fifth largest, and it contains almost all the known sex-linked genes.