绝大多数染色粒包含一个遗传单位。
基因：在染色体上占据固定位置的遗传单位。
Gene: Unit of heredity that occupies a fixed position on a chromosome.
然后，用户可将BioBricks和其它标准遗传单位拼装在一起，实现任何目的。
Users could then fit together BioBricks and other standard genetic units to do anything they want.
而在那之前，生物学家们一直都认为作为遗传单位的“基因”是由蛋白质组成的。
Until then, biologists thought that 'genes', the units of inheritance, were made of protein.
苍蝇帮助科学家们发现了同源染色体中包含一种称之为基因的遗传单位，还把遗传，进化和生长领域的研究统一起来。
The fly helped scientists discover that chromosomes contain small units of heredity called genes, and it helped unify research into heredity, evolution and development.
苍蝇帮助科学家们发现了同源染色体中包含一种称之为基因的遗传单位，还把遗传，进化和生长领域的研究统一起来。
The fly helped scientists discover that chromosomes contain small units of heredity called genes, and it helped unify research into heredity, evolution and development.
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