Question

write an account on Blastula.​

Answer 1

Answer:

The development of multi-cellular organisms begins from a single-celled zygote, which undergoes rapid cell division to form the blastula. The rapid, multiple rounds of cell division are termed cleavage. After the cleavage has produced over 100 cells, the embryo is called a blastula.

Answer 2

Answer:

Blastula:

          Blastula is an early development of an embryo, consisting of a spherical cell layer and a fluid-filled cavity called the blastocoel. The cells of the blastula form an epithelial layer, called the blastoderm. Blastula is developed from morula and comprises 128 cells. Blastulation leads to the development of cell polarity, axis formation, cell specification as well as regulation of gene expression.

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