What factor has the strongest influence on the cleavage pattern of an embryo?
A)viscosity of albumin
B)amount of yolk
C)maturity of cytoplasm
D)oxygen in air

Question

Quizplus · Accepted Answer

The amount of yolk present in the egg determines the cleavage pattern of an embryo. In eggs with a large amount of yolk, such as reptile and bird eggs, the cleavage is superficial, which means that only the cytoplasm at the periphery of the egg cleaves. In eggs with a small amount of yolk, such as mammalian eggs, the cleavage is holoblastic, meaning that the entire egg undergoes cell division. Viscosity of albumin, maturity of cytoplasm, and oxygen in air do not have a significant influence on the cleavage pattern of an embryo.

What Factor Has the Strongest Influence on the Cleavage Pattern