endosymbionts
美
英 
例句
Because the host supplies nourishment for these so-called endosymbionts, they are able to get by with fewer genes of their own.
由于宿主也為這種所謂的“內共生體”提供營養,因而他們只需要自己基因中很少的部分就可以繁殖。
Accordingly, endosymbionts had never really dipped below a genomic sequence length of 500, 000 to 600, 000 base pairs.
因此內共生體中一個基因片段的長度應該不會少于500,000到600,000堿基對。