Now they will be able to identify genes for any desired trait, improving quality,nutritional value and disease resistance.
VOA: special.2009.11.03
You could imagine strategies where you have multiple resistance genes on a plasmid, resistance to Ampicillin, to Penicillin, to Erythromycin for example, and you design strategies for separating out which cells are carrying the plasmid that you're interested in.
若质粒上有多种抗性基因,你就有很多筛选方法,例如对氨苄青霉素,青霉素,红霉素的抗性,而且你可以设计方法分离出,含有你感兴趣质粒的细胞
They have had their genes changed to contain a special characteristic, like resistance to certain insects.
VOA: special.2010.11.09
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