Question

Cleavage in an egg is speeded up or slowed down because of

Answer 1

Answer:

the presence of the yolk

Explanation:

Answer 2

Answer:

Cleavage in an egg is speeded up or slowed down because of the amount of yolk that is present.

Explanation:

• The distribution of the yolk determines the shape of cleavage and the type of segmentation.

• The cleavage can be of two types, holoblastic or meroblastic.

• Mammals have holoblastic or equal cleavage because they implant it into the uterine wall.

• That is how yolk affects the cleavage.