Question Detail

BIO 101 Embryonic development and birth Objective Question
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Question

When does the fetus activate gene pathways for sex determination?
Options
A At fertilization
B Beginning of the eighth week
Correct Answer
C End of the first trimester
D During the third trimester
Correct Answer

Option B is the correct answer.

Detailed Explanation

Beginning the eighth week, the sexually neutral fetus activates gene pathways for sex determination.

Hint

This leads to the formation of testes in XY fetuses and ovaries in XX fetuses.

Question Info

Course: BIO 101
Topic: Embryonic development and birth
Type: Objective
Difficulty: Not specified
Question 585 of 2556
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