A Human Zygote Undergoes Its First Cell Division

Question

A human zygote undergoes its first cell division
A) 5 seconds after fertilization.
B) 30 minutes after fertilization.
C) 90 minutes after fertilization.
D) 4 hours after fertilization.
E) 24 hours after fertilization.

Accepted Answer

A human zygote typically undergoes its first cell division about 24 hours after fertilization. This is a critical step in the early stages of embryonic development.