Short arm of a chromosome

Short arm of a chromosome
The short arm of a human chromosome is symbolized by convention as "p". The "p" comes from the French "petit" meaning small. All human chromosomes have 2 arms, the p (short) arm and the q (long) arm. They are separated from each other only by a primary constriction, the centromere, the point at which the chromosome is attached to the spindle during cell division. The symbol "q" was chosen for the long arm simply because it followed "p" in the alphabet.

Medical dictionary. 2011.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • p arm of a chromosome — The short arm of a chromosome. The p comes from the French petit meaning small. All human chromosomes have 2 arms the p (short) arm and the q (long) arm that are separated from each other only by a primary constriction, the centromere, the point… …   Medical dictionary

  • q arm of a chromosome — The long arm of a chromosome. All human chromosomes have 2 arms a short arm and a long arm that are separated from each other only by the centromere, the point at which the chromosome is attached to the spindle during cell division. By… …   Medical dictionary

  • Long arm of a chromosome — The long arm of a chromosome is termed the q arm. All human chromosomes have 2 arms, the p (short) arm and the q (long) arm. They are separated from each other only by a primary constriction, the centromere, the point at which the chromosome is… …   Medical dictionary

  • Chromosome 5 (human) — Chromosome 5 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 5 spans about 181 million base pairs (the building blocks of DNA) and represents almost 6% of the total DNA in cells.… …   Wikipedia

  • Chromosome 3 (human) — Short and long arms Chromosome 3 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 3 spans almost 200 million base pairs (the building material of DNA) and represents about 6.5 percent …   Wikipedia

  • Syndrome, chromosome 4 short-arm deletion — This syndrome, called the Wolf Hirschhorn syndrome, is a chromosome disorder due to partial deletion of the short (p) arm of chromosome 4. It is, therefore, also called the 4p syndrome. Features of the syndrome include midline defects with a… …   Medical dictionary

  • Chromosome 5q deletion syndrome — Classification and external resources Photomicrograph of bone marrow showing abnormal mononuclear megakaryocytes typical of 5q syndrome ICD O: M …   Wikipedia

  • Short stature homeobox gene — or SHOX is a gene on the X chromosome and Y chromosome which is associated with short stature in humans if mutated or present in only one copy (haploinsufficiency). PathologyThe gene was first found during a search for the cause of short stature… …   Wikipedia

  • Chromosome 13 (human) — Chromosome 13 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 13 spans about 114 million base pairs (the building material of DNA) and represents between 3.5 and 4 % of the… …   Wikipedia

  • Chromosome 8 (human) — Chromosome 8 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 8 spans about 145 million base pairs (the building material of DNA) and represents between 4.5 and 5.0% of the total DNA… …   Wikipedia

Share the article and excerpts

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