A single gene on the Y chromosome throws a master switch at about the ________ after conception.This triggers the subsequent development of the testes and their production of testosterone.
A) first week
B) seventh week
C) third month
D) sixth month

Question

Quizplus · Accepted Answer

The master switch gene on the Y chromosome is activated at about the seventh week after conception. This leads to the development of the testes and subsequent production of testosterone. Therefore, option B is the correct answer.

A Single Gene on the Y Chromosome Throws a Master