广播电视英语短句 第 280 课：马铃薯基因-2

A genome contains information about every position along chromosomes, the structures that hold genes. 基因组中包含了保持基因结构的每一个染色体的位置。

Genes direct the making of proteins which do much of the work in building an organism, whether a person or a potato. 基因管理着蛋白质的生成，无论对人还是马铃薯，蛋白质在建立有机体上起着重要作用。马

A potato has twelve chromosomes and about eight hundred forty million base pairs. 铃薯有12个染色体和大约8.4亿个碱基对。

This is about one-fourth the size of the human genome. 这个数量是人类基因组的四分之一。

The potato genome is not yet final but it shows the order of ninety-five percent of the genes. 马铃薯基因组并没有完全确定，但已经显示了95%的基因序列。