what is the adaptive advantage of linking duration of the cleavage stage is the ratio of material in the nucleus-cytoplasm? The single nucleus in a newly fertilization egg has too little DNA toproduce the amount of messenger RNA required to meet the
cell 's need for new proteins. Instead, the initial stages of development are carried out by RNA and proteins deposited in the during oogenesis. After cleavage, the egg cytoplasm has been divided among the many blastomeres, each with its own nucleus.