These changes in a population are called polymorphisms.

这些在一个群体中的变化被称为多态性。

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Some changes in DNA occur naturally and lead to no harmful effects; these changes in a population are called polymorphisms.

有些DNA的变化是自然发生的不会产生有害影响；这些在一个群体中的变化被称为多态性。

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Dr Quintana-Murci's data were drawn from a project called HapMap, which catalogues what are known as single-nucleotide polymorphisms, or SNPs.

Quintana - Murci博士的数据来自人类基因组单体型计划图，旨在对单核苷酸多态性，即SNPs进行归类。

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But DNA chip technology for scanning these so-called single nucleotide polymorphisms, or SNPs ("snips"), was prohibitively expensive in 2000.

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These small mistakes are called single nucleotide polymorphisms, or SNPs.

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It focused narrowly on areas in and around active genes, ignoring the 98.5% of genomic material known as "junk DNA." This process pinpointed 25, 000 genetic landmarks called SNPS (single nucleotide polymorphisms, or "snips"), places where a single dna letter varies from one person to the next.

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