lampbrush chromosome
noun Date: 1911 a greatly enlarged diplotene chromosome that has apparently filamentous granular loops extending from the chromomeres and is characteristic of some animal oocytes

New Collegiate Dictionary. 2001.

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  • lampbrush chromosome — lampbrush chromosome. См. хромосомы типа ламповых щеток. (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.

  • Lampbrush chromosome — A Lampbrush chromosome (first seen by Flemming in 1882) is a large chromosome (largest) found especially in the oocytes (immature eggs) of most animals, except mammals. Lampbrush chromosomes occur during the diplotene stage of meiosis I.… …   Wikipedia

  • lampbrush chromosome — ˈ ̷ ̷ˌ ̷ ̷ noun Etymology: translation of German lampenbürstenchromosom : a greatly enlarged pachytene chromosome having apparently filamentous granular loops extending from the chromomeres that is especially characteristic of certain animal… …   Useful english dictionary

  • lampbrush chromosome — lamp·brush chromosome .lamp .brəsh n a greatly enlarged diplotene chromosome that has apparently filamentous granular loops extending from the chromomeres and is characteristic of some animal oocytes * * * a giant chromosome with hundreds of… …   Medical dictionary

  • lampbrush chromosome — Large diplotene chromosomes present in oocyte nuclei, and particularly conspicuous in amphibians. These chromosomes have extended regions called loops, which are active sites of transcription. See: diplonema …   Glossary of Biotechnology

  • Chromosome — For a non technical introduction to the topic, see Introduction to genetics. Diagram of a replicated and condensed metaphase eukaryotic chromosome. (1) Chromatid – one of the two identical parts of the chromosome after S phase. (2)… …   Wikipedia

  • 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

  • Polytene chromosome — Polytene chromosomes in a Chironomus salivary gland cell …   Wikipedia

  • giant chromosome — 1. polytene c. 2. lampbrush c …   Medical dictionary

  • Cromosoma — Vista general de las células en un ápice de raíz de cebolla (Allium cepa), observado con 800 aumentos. (a) Célula sin dividirse, obsérvese la red de cromatina …   Wikipedia Español

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