chromosomes例句
Chromosomes also determine the sex of animals.
染色體也決定動(dòng)物的性別.
Each of four
chromosomes divide longitudinally.
四種染色體的每一種都沿著縱向分裂.
At this point esch chromosome consist of a pair of chromatids and the two associated
chromosomes are termed a tetrad.
此時(shí)每條染色體由一對(duì)染色單體構(gòu)成,這兩條聯(lián)合的染色體稱為四分體.