Assertion: In the morula stage,cells divide w | vedclass

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(A) During the process of cleavage,the zygote undergoes repeated mitotic divisions to form a solid ball of $8-16$ cells called a morula. In this stage

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

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(A) During the process of cleavage,the zygote undergoes repeated mitotic divisions to form a solid ball of $8-16$ cells called a morula. In this stage,the cells divide without any increase in the overall size of the embryo because the cytoplasm does not grow between divisions. The embryo remains enclosed within the $Zona \ pellucida$ throughout the cleavage process until it reaches the blastocyst stage. Therefore,both the Assertion and the Reason are correct,and the Reason explains why the embryo does not increase in size during cleavage.

Assertion: In the morula stage,cells divide without an increase in size.
Reason: Zona pellucida remains undivided until cleavage is complete.

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Assertion: In the morula stage,cells divide without an increase in size.Reason: Zona pellucida remains undivided until cleavage is complete.