Question

What happens if an XX individual has a SRY gene? A) Development of male reproductive structures

B) Development of female reproductive structures
C) Development of both male and female reproductive structures
D) No impact on reproductive development

Answer 1

An XX individual with an SRY gene typically develops male reproductive structures due to the role of the SRY gene in male sex determination and testosterone production.

Step-by-step explanation:

If an XX individual has a SRY gene, what generally occurs is the development of male reproductive structures. The SRY gene, which is usually found on the Y chromosome, plays a critical role in male sex determination by initiating a cascade of events that promotes the formation of testes and suppresses the development of female reproductive structures.

In the presence of the SRY gene, Leydig cells in the embryonic testes produce testosterone, leading to the development of male sexual organs despite the XX chromosomal arrangement.