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。
Dr Quintana-Murci's data were drawn from a project called HapMap, which catalogues what are known as single-nucleotide polymorphisms, or SNPs.
当前的基因检测分析了大约600,000个SNP(单核苷酸多态性)，只是整个基因组的千分之一。
Current genetic tests analyze about 600,000 SNPs (single nucleotide polymorphisms) or 0.1 percent of the entire genome.
有些单核苷酸多态性会出现于基因体本身，而其它一些则出现于基因体之间的脱氧核糖核酸之中。
Some SNPs occur in genes themselves. Others are found in the DNA between genes.
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