centromere

/sen-truh-meer/US // ˈsɛn trəˌmɪər //UK // (ˈsɛntrəˌmɪə) //

中心粒,中心点,中心区,中心子粒

Definitions

n.名词 noun

1
Cell Biology.
- : a specialized structure on the chromosome, appearing during cell division as the constricted central region where the two chromatids are held together and form an X shape.

These shared epigenetic marks were concentrated in certain parts of the genome, including centromere and telomere regions on chromosomes.
Learning more about centromeres may help researchers understand why chromosome division sometimes goes wrong, leading to cancer or genetic conditions such as Down syndrome.