That makes it easy to see when particular genetic mutations happened, and thus to construct a human family tree.
这个特点使得特殊的基因突变发生时比较容易看得出来，于是就可以构建一个人类族谱树状图。
Rathore used a new technique, called RNA interference, to construct a genetic sequence that blocked the gossypol-producing enzyme in the seeds only.
拉索尔教授运用了一项名为核糖核酸（RNA）干扰的新技术，仅在棉籽中建立了一个阻断棉子酚生长酶的基因序列。
They used this and other HIV-1 genetic sequences to construct a family tree of the origin of the viral strain and to estimate the time of origin of HIV-1 group m.
他们利用这个遗传序列与其他HIV - 1的遗传序列构建出起源病毒株的家系图，并以此估算出HIV - 1 M组的起源时间。
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