[Campbell Biology P.347] What is the role of the SRY gene in human sex determination? | Practice Question

What is the role of the SRY gene in human sex determination?

  • A: It is required for the development of ovaries.
  • B: It is located on the X chromosome and determines female traits.
  • C: It is required for the development of testes.
  • D: It ensures the fifty-fifty chance of having a male or female offspring.

Explanation

The text explicitly states, 'A gene on the Y chromosome—called SRY, for sex-determining region of Y—is required for the development of testes.' In the absence of SRY, the generic embryonic gonads develop into ovaries.