An embryo with a genital tubercle,urethral folds,and urethral groove must be
A) under seven weeks old.
B) seven weeks old.
C) nine weeks old.
D) unable to determine the age.

Question

Quizplus · Accepted Answer

A genital tubercle, urethral folds, and urethral groove are present in the development of the male and female reproductive systems during the first seven weeks of gestation. After this time, sexual differentiation continues and the structures become more distinct as they develop into male or female genitalia. Therefore, an embryo with these structures must be under seven weeks old.

An Embryo with a Genital Tubercle,urethral Folds,and Urethral Groove Must