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人类基因组序列及分析结果为更好地理解人类的多样性提供了一张“地图”。发生率超过 1%人口的变异称为多态性。单核苷酸取代 (称单核苷酸多态性 ,ＳＮＰ)是最常见的多态性类型。ＳＮＰ可出现在基因的编码区 (称ｃＳＮＰ)或非编码区。因遗传密码的兼并性 ,某些核苷酸的取代并不
The human genome sequence and analysis provide a “map” for better understanding of human diversity. Variation in the population over 1% is called polymorphism. Single nucleotide substitutions (SNPs) are the most common types of polymorphisms. SNPs can occur in the coding region of genes (called cSNP) or in non-coding regions. Due to the nature of the genetic code, certain nucleotide substitutions are not