maternal rna造句

例句与造句

1. In the early mouse embryo, cytoplasmic polyadenylation of maternal RNAs from the egg cell allows the cell to survive and grow even though transcription does not start until the middle of the 2-cell stage ( 4-cell stage in human ).
2. The molecular signals are so-called maternal RNA's, messages made from the mother's DNA that will eventually be translated into proteins in the egg cell to let the embryo know that one side is the anterior, or head side, the other the posterior side, and then to know its back, dorsal end, from its front, ventral end.
3. It's difficult to find maternal rna in a sentence. 用maternal rna造句挺难的