Prenatally, the decrease in the number of neurons in the brain is most dramatic __________.
A) in the final trimester
B) 2 to 4 months after conception
C) 4 to 6 months after conception
D) in the first month after conception

Question

Quizplus · Accepted Answer

The most significant decrease in the number of neurons in the brain occurs between 4 to 6 months after conception due to the process of apoptosis, where excess neurons are pruned to refine neural circuits.

Prenatally, the Decrease in the Number of Neurons in the Brain