To investigate further, Dr Drayna is now attempting to splice human stutter-causing genes into the DNA of mice.

为了进一步调查，德雷纳博士正尝试将引发人类口吃的基因拼接到老鼠的DNA中。

Maybe splicing some genes, clone a sheep, perhaps grow a human ear on a mouse's back?

基因拼接 克隆羊 或者在老鼠背上培育人的耳朵？

Next, splice that engineered gene into the genome of a bacterium designed to constantly pump it out, which makes the protein a lot cheaper to produce.

接下来，将该工程基因拼接到细菌的基因组中， 该细菌旨在不断将其泵出，从而使生产蛋白质的成本大大降低。