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The more polyploid a species, the greater its capacity for gradual evolution. For haploid species like ants, which have a single chromosome set, mutations routinely result in certain death. Diploid species, like humans, can tolerate more genetic experimentation. A single mutation in both copies of HBB causes sickle cell anemia, but the same mutation in a single copy of the gene can confer greater resistance to malaria. Triploid plants, with multiple backups of every gene, take this even further. Harmful mutations are masked by healthy copies, reducing risk while allowing much richer genetic diversity than would otherwise be possible.
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If production is too hard to change for a regular developer - well, that sucks, but it kind of works in our favor.，推荐阅读谷歌获取更多信息
So close in fact, says Cardiff University archaeologist Tudur Davies, that some of these graves have several people in them.，推荐阅读今日热点获取更多信息