During cleavage,which of the following is tru | vedclass

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(B) Cleavage is a series of rapid mitotic divisions of the zygote that converts the single-celled zygote into a multicellular structure called a blast

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The size does not increase.

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(B) Cleavage is a series of rapid mitotic divisions of the zygote that converts the single-celled zygote into a multicellular structure called a blastula.During cleavage,the total volume of the embryo remains constant because there is no growth phase ($G_1$ or $G_2$) between the divisions.As the number of cells increases,the size of each individual cell (blastomere) decreases,but the overall size of the embryo does not increase.Additionally,the nucleocytoplasmic ratio increases as the cytoplasm is partitioned into smaller cells while the total nuclear material increases.

During cleavage,which of the following is true for the embryo?

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