像许多有性繁殖的物种一样，人类有特殊的性染色体。
Like many sexually reproducing species, humans have special gonosomes.
这是一种交易：她的性繁殖力换取他的资源。
这些具有内在的和明显的遗传性，并可以无性繁殖。
These are inherent and apparently permanent and can be propagated vegetatively.
这些具有内在的和明显的遗传性，并可以无性繁殖。
These are inherent and apparently permanent and can be propagated vegetatively.
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