Acentric chromosome
A fragment of a chromosome (one of the microscopically visible carriers of the genetic material DNA) that is lacking a centromere (the “waist” of the chromosome essential for the division and the retention of the chromosome in the cell) and so is lost when the cell divides.

* * *

a chromosome with no centromere.

Medical dictionary. 2011.

Look at other dictionaries:

  • acentric chromosome — acentric chromosome. См. акинетическая хромосома. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • acentric chromosome — Chromosome fragment lacking a centromere …   Glossary of Biotechnology

  • acentric chromosome — noun a chromosome lacking a centromere • Hypernyms: ↑chromosome …   Useful english dictionary

  • acentric — adjective 1. lacking a centromere an acentric chromosome fragment • Pertains to noun: ↑centromere 2. not centered or having no center • Similar to: ↑eccentric, ↑nonconcentric …   Useful english dictionary

  • Acentric fragment — An acentric fragment is a segment of a chromosome that lacks a centromere.Because it is the centromere is the point of attachment for the mitotic apparatus, such fragments are not evenly distributed to the daughter cells in cell division (mitosis …   Wikipedia

  • acentric — Lacking a center; in cytogenetics, denoting a chromosome fragment without a centromere. [G. a priv. + kentron, center] * * * acen·tric ( )ā sen trik adj lacking a centromere <acentric chromosomes> * * * n. (in …   Medical dictionary

  • Chromosome — A visible carrier of the genetic information. The 3 billion bp (base pairs) in the human genome are organized into 24 distinct, physically separate microscopic units called chromosomes. All genes are arranged linearly along the chromosomes. The… …   Medical dictionary

  • acentric — n. (in genetics) a chromosome or fragment of a chromosome that has no centromere. Since acentrics cannot attach to the spindle they are usually lost during cell division. They are often found in cells damaged by radiation. Derivatives: acentric… …   The new mediacal dictionary

  • Chromosome, acentric — A fragment of a chromosome (one of the microscopically visible carriers of the genetic material DNA) that is lacking a centromere (the “waist” of the chromosome essential for the division and the retention of the chromosome in the cell) and so is …   Medical dictionary

  • acentric — adj. [Gr. a, without; kentrol, center] Pertaining to not being centered; lacking a centromere when referring to a chromosome or chromosome fragment …   Dictionary of invertebrate zoology

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”