chromatids [kroʊmæ'tɪdz]

例句:

• Each chromosome consists of two chromatids held together by the centromere.
  每个染色体由两个染色单体所组成,它们被一个着丝点联结在一起.
  
• Following the replication of chromosomes, resultant chromatids remain attached at the centromere.
  随着染色体的复制, 着丝粒始终连接着形成的两个染色单体.
  
• At this point esch chromosome consist of a pair of chromatids and the two associated chromosomes are termed a tetrad.
  此时每条染色体由一对染色单体构成,这两条联合的染色体称为四分体.