例句與造句

1. Another method of cloning without the use of DNA digest and ligase is by Gateway cloning system.
2. The availability of these gene cassettes in a standard Gateway cloning plasmid helps researchers quickly transfer these cassettes into plasmids that facilitate the analysis of gene function.
3. Since Gateway cloning uses patented recombination sequences, and proprietary enzyme mixes available only from Invitrogen, the technology does not allow researchers to switch vendors and contributes to the lock-in effect of all such patented procedures.
4. Gateway cloning does take more time for initial set-up, and is more expensive than traditional restriction enzyme and ligase-based cloning methods, but it saves time, and offers simpler and highly efficient cloning for down-stream applications.
5. It's difficult to find gateway cloning in a sentence. 用gateway cloning造句挺難的