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。

youdao

Current genetic tests analyze about 600,000 SNPs (single nucleotide polymorphisms) or 0.1 percent of the entire genome.

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。

youdao

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。

youdao

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

FORBES: On The Cover/Top Stories

The scientists looked for common genetic variations - known as single nucleotide polymorphisms (Snps) - linked to the three cancers.

BBC: DNA test reveals 80 markers for inherited cancer risk

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

FORBES: Orchid Biosciences Not Yet In The Black