In the blastocyst,the blastomeres are arrange | vedclass

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(A) The blastocyst is an early developmental stage of the embryo. It consists of an outer layer of cells known as the trophoblast,which attaches to th

Vedclass · Accepted Answer

$A)$ Trophoblast,$B)$ Inner Cell Mass

Vedclass · Answer

(A) The blastocyst is an early developmental stage of the embryo. It consists of an outer layer of cells known as the trophoblast,which attaches to the endometrium. The inner group of cells attached to the trophoblast is known as the inner cell mass $(ICM)$,which eventually differentiates into the embryo proper. Therefore,$A$ is the trophoblast and $B$ is the inner cell mass.

In the blastocyst,the blastomeres are arranged into an outer layer called _ $A$ _ and an inner group of cells attached to the trophoblast,called _ $B$ _.

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