Mastering Biology Homework

Posted on 2014-04-03 10:15:00 in Biology by STEPHENEE

5.) During cleavage ______.



A.cytoplasmic determinants are evenly distributed to all cells

B. cell division is occurring very slowly, when compared with dividing cells of the body

C. blastomeres become progressively smaller

D. there is cytokinesis but no mitosis



6.)The anterior-posterior axis of most animals is determined by ______



A.the appearance of specific proteins expressed in a concentration gradient from belly to back

B.apoptosis of cells between the head and the tail

C. cell differentiation between head and tail

D. a concentration gradient of morphogen(s) from the anterior to the posterior end

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