目前对于长粒主效显性基因定位尚未见报道，因此本研究为首次将一长粒主效显性基因定位于第二染色体上，暂命名为GL - 2。

So far, the large-grain dominant gene has not reported. Thus this research is the first to map a large-grain dominant gene on the chromosome 2 in rice, which was temporarily designated as gl-2.

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现在猜测这些疾病基因可能在X染色体上面，这意味着女性有着第二条基因去抵消的优势。

Now some of these [disease genes] may be on the X chromosome, [meaning that women who have the second X chromosome with which to compensate, would have an advantage].

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患有特纳综合症的女性往往缺失一种或部分第二X染色体。

Women with the syndrome are missing one or part of their second X chromosome.

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