Question

A cell formed from cleavage is called a

• A. Blastomere
• B. Morula
• C. Blastula
• D. Blastopore

Answer 1

Answer: (A)

Blastomere

A blastomere is a type of cell produced by cleavage (cell division) of the zygote after fertilization and is an essential part of blastula formation. In humans, blastomere formation begins immediately the following fertilization and continues through the first week of embryonic development. About 90 minutes after fertilization, the zygote divides into two cells. These mitotic divisions continue and result in a grouping of cells called blastomeres.

So the correct option is 'blastomere'.