As cleavage continues during frog development, the size of the blastomeres
A) increases as the number of the blastomeres decreases.
B) increases as the number of the blastomeres increases.
C) decreases as the number of the blastomeres increases.
D) decreases as the number of the blastomeres decreases.
E) increases as the number of the blastomeres stays the same.

Question

Quizplus · Accepted Answer

As cleavage progresses, the zygote undergoes mitotic divisions resulting in an increase in the number of blastomeres. As the number of blastomeres increases, the overall size of the blastomeres decreases due to the growing number of cells occupying the same volume of the egg. Therefore, the size of blastomeres decreases as the number of blastomeres increases.

As Cleavage Continues During Frog Development, the Size of the Blastomeres