Which of the following events is involved in cleavage of the zygote during week 1 of development?
Cleavage is a series of mitotic divisions by which the large amount of zygote cytoplasm is successively paitioned among the newly formed blastomeres. Although the number of blastomeres increases during cleavage, the size of individual blastomeres decreases until they resemble adult cells in size.
A series of meiotic divisions forming blastomeres
Production of highly differentiated blastomeres
An increased cytoplasmic content of blastomeres
A decrease in size of blastomeres
Development period- week 1,2,3,4