Gastrulation occurs at approximately which point after fertilization?
A)within days
B)during first 2 weeks of embryonic period
C)during third week of embryonic period
D)during fourth week of embryonic period
E)after the fifth week of embryonic period

Question

Quizplus · Accepted Answer

Gastrulation occurs during the third week of embryonic period, which is approximately 14-21 days after fertilization.

Gastrulation Occurs at Approximately Which Point After Fertilization