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1. |
Which of the following is not evident that the pattern of cleavage is determined by factors in the egg cytoplasm rather than by genes of zygote |
A. | Cleavage is prevented by injection of a protein synthesis inhibitor |
B. | Cleavage is not affected by injection of inhibitors of RNA synthesis into the zygote |
C. | Interspecific hybrid zygotes go through normal cleavag but die at the beginning of gastrulation |
D. | The direction of the first division of cleavage in the snail Cepaea is determined by the mothers genotype |
Answer» B. Cleavage is not affected by injection of inhibitors of RNA synthesis into the zygote | |