What is the significance of the X and Y chromosome in terms of sexual identity?

Question

Quizplus · Accepted Answer

The X and Y chromosomes play a crucial role in determining sexual identity. The presence of the Y chromosome, specifically the SRY gene on it, signals the development of testes, which then produce testosterone leading to the development of male tissues. The X chromosome does not contain the SRY gene; instead, its presence in double (XX) typically leads to the development of ovaries and the absence of the SRY gene means the default pathway to female development is followed.

What Is the Significance of the X and Y Chromosome