Question

Renfrew is a male boa constrictor. He has two copies of a sex chromosome called Z chromosome. Renfrew is a member of the _____ sex.

a) Female
b) Male
c) Hermaphrodite
d) Asexual

Answer 1

Renfrew, having two copies of the Z chromosome, is a male, as per the ZW sex-determination system common to birds and some reptiles.

Step-by-step explanation:

The question asks about sex determination in the context of boa constrictors, which, like birds and some fish, crustaceans, insects, and reptiles, utilize a ZW sex-determination system. In this system, an individual with two Z chromosomes (ZZ) is male, and an individual with one Z and one W chromosome (ZW) is female. The presence of two Z chromosomes in Renfrew, the boa constrictor, indicates that he is a member of the male sex.