例句與造句

1. In some cases, a replicative transposition is observed in which a transposon replicates itself to a new target site ( e . g . helitron ).
2. In a paper published in the " Proceedings of the National Academy of Sciences " in 1979, Shapiro was the first to propose replicative transposition as a mechanism for gene mobility.
3. It's difficult to find replicative transposition in a sentence. 用replicative transposition造句挺難的