chromatid
/ˈkrəʊmətɪd
/noun Biology
Each of the two thread-like strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA.Any bias in the segregation of one or the other of a pair of homologous chromosomes or chromatids between the oocyte and the polar body can have a dramatic effect on the genetic makeup of a population....
- A double crossover involving one linear chromatid and both chromatids of the circular chromosome generates a linear trimer.
- One is the nonreciprocal transfer of information of both DNA strands of a donor chromatid to a chromatid of the homologous chromosome.
Origin
Early 20th century: from Greek khrōma, khrōmat- 'colour' + -id2.