chromomere

views updated Jun 11 2018

chromomere A small, bead-like structure that is visible in a chromosome during prophase of meiosis and mitosis, when it is relatively uncoiled (in particular at the leptotene and zygotene stages of meiosis). In polytene chromosomes, the chromomeres lie in parallel, giving the chromosome its banded appearance. Chromomeres in corresponding positions on homologous chromosomes pair during meiosis in many organisms.

chromomere

views updated May 23 2018

chromomere A small beadlike structure visible in a chromosome during prophase of meiosis and mitosis, when it is relatively uncoiled (in particular at the leptotene and zygotene stages of meiosis). Chromomeres in corresponding positions on homologous chromosomes pair during meiosis in many organisms.