By the time the conceptus arrives in the uterus,it consists of at least __________ or more cells.
A) 2
B) 4
C) 8
D) 16
E) 32

Name: By the time the conceptus arrives in the uterus,it consists of at least __________ or more cells. A) 2 B) 4 C) 8 D) 16 E) 32
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Question

Quizplus · Accepted Answer

After fertilization in the oviduct, the zygote undergoes several rounds of cell division called cleavages. By the time it reaches the uterus, it has undergone about 4-5 cleavages, resulting in 16 or more cells. Therefore, the correct answer is D) 16.

By the Time the Conceptus Arrives in the Uterus,it Consists