Satellite DNA

Satellite DNA
DNA that contains many tandem (not inverted) repeats of a short basic repeating unit. Satellite DNA is located at very specific spots in the genome (on chromosomes 1, 9, 16 and the Y chromosome, the tiny short arms of chromosomes 13-15 and 21 and 22, and near the centromeres of chromosomes).

* * *

satellite DNA n a fraction of a eukaryotic organism's DNA that differs in density from most of its DNA as determined by centrifugation, that consists of short repetitive nucleotide sequences, that does not undergo transcription, and that is often found in centromeric regions

* * *

short, highly repeated DNA sequences found in eukaryotes, differing in base composition from that of the bulk of the DNA, usually occurring clustered in groups of many tandem repeats in constitutive heterochromatin and generally not transcribed.

Medical dictionary. 2011.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Satellite DNA — consists of very large arrays of tandemly repeating, non coding DNA. Satellite DNA is the main component of functional centromeres, and form the main structural constituent of heterochromatin.[1][2] The name satellite DNA refers to how… …   Wikipedia

  • satellite DNA — satellite DNA. См. сателлитная ДНК. (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.

  • satellite DNA — noun : a fraction of a eukaryotic organism s DNA that differs in density from most of its DNA as determined by centrifugation, that consists of short repetitive nucleotide sequences, that does not undergo transcription, and is often found in… …   Useful english dictionary

  • satellite DNA — noun Date: 1969 a fraction of a eukaryotic organism s DNA that differs in density from most of its DNA as determined by centrifugation, that consists of short repetitive nucleotide sequences, that does not undergo transcription, and that is often …   New Collegiate Dictionary

  • satellite DNA — (= minisatellite; microsatellite) DNA, usually containing highly repetitive sequences, that has a base composition (and thus density) sufficiently different from that of normal DNA that it sediments as a distinct band in caesium chloride density… …   Dictionary of molecular biology

  • satellite DNA — Highly repetitive DNA in plant and animal genomes, consisting of millions of copies of sequences typically in the range 5 500 bp long. Thousands of copies occur tandemly (head to tail) at each of many sites. It can be isolated from the rest of… …   Glossary of Biotechnology

  • satellite DNA —    Consists of many tandem repeats (identical or related) of a short basic repeating unit …   Forensic science glossary

  • alpha-satellite DNA — alpha satellite DNA. См. альфа сателлитная ДНК. (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.

  • cryptic satellite DNA — cryptic satellite DNA. См. криптическая сателлитная ДНК. (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.

  • heavy satellite DNA — heavy satellite DNA. См. тяжелая сателлитная ДНК. (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.

Share the article and excerpts

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