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。
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。
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。
Each person's collection of these changes (called "single nucleotide polymorphisms, or SNPs) contributes to his or her individuality.
每个人带有的这些差异的集合（称作单核苷酸多态性，简称SNPs）造成了他/她的独特性。
Scientists identified 150 DNA sequence variations called single nucleotide polymorphisms among those 100 years old and above that may have contributed to their healthy aging.
科学家们辨认了那些百岁或超过百岁老人的150个不同的有助于健康老龄化的被称作单核甘酸多态性的DNA序列。
Scientists later refined the map by looking for single variations called SNPs or single nucleotide polymorphisms.
科学家们稍后通过利用称为SNP的单核苷酸多态性使遗传图谱更加精细。
Scientists later refined the map by looking for single variations called SNPs or single nucleotide polymorphisms.
科学家们稍后通过利用称为SNP的单核苷酸多态性使遗传图谱更加精细。
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