- Band, chromosome
- One of the transverse bands produced on chromosomes by differential staining techniques. Depending on the particular staining technique, the bands are alternating light and dark or fluorescent and nonfluorescent. Each human chromosome has a short arm ("p" for "petit") and long arm ("q" for "queue") separated by a centromere. The ends of the chromosome are called telomeres. Each chromosome arm is divided into regions, or cytogenetic bands, that can be seen using a microscope and special stains. The cytogenetic bands are labeled p1, p2, p3, q1, q2, q3, etc., counting from the centromere out toward the telomeres. At higher resolutions, sub-bands can be seen within the bands. The sub-bands are also numbered from the centromere out toward the telomere. For example, the cytogenetic map location of a gene termed CFTR (cystic fibrosis transmembrane conductance regulator) is 7q31.2, which indicates it is on chromosome 7, q arm, band 3, sub-band 1, and sub-sub-band 2. The ends of the chromosomes are labeled ptel and qtel. For example, the notation 7qtel refers to the telomere (the end) of the long arm of chromosome 7.
Medical dictionary. 2011.
Look at other dictionaries:
Chromosome 5q deletion syndrome — Classification and external resources Photomicrograph of bone marrow showing abnormal mononuclear megakaryocytes typical of 5q syndrome ICD O: M … Wikipedia
Chromosome microdissection — Left panels show metaphase chromosomes before microdissection (top) and after a chromosomal band is removed (bottom). Right panels show an illustration of the same information for clarity. Chromosome microdissection is a technique that physically … Wikipedia
Chromosome band — One of the transverse bands produced on chromosomes by differential staining techniques. Depending on the particular staining technique, the bands are alternating light and dark or fluorescent and nonfluorescent. Each human chromosome has a short … Medical dictionary
band — 1. Any appliance or part of an apparatus that encircles or binds a part of the body. SEE ALSO: zone. 2. Any ribbon shaped or cordlike anatomic structure that encircles or binds another structure or that connects two or more parts. See fascia,… … Medical dictionary
Chromosome 1, 1p36 deletion syndrome — Infobox Disease Name = PAGENAME Caption = DiseasesDB = 34535 ICD10 = ICD9 = ICDO = OMIM = 607872 MedlinePlus = eMedicineSubj = eMedicineTopic = eMedicine mult = MeshID = Chromosome 1, 1p36 deletion syndrome is a medical condition caused by a rare … Wikipedia
Band 3 — Solute carrier family 4, anion exchanger, member 1 (erythrocyte membrane protein band 3, Diego blood group) Atomic microscope image of Band 3 … Wikipedia
Band, Q — A form of chromosome band, one of the bright and dull fluorescent bands seen alternating along the length of chromosomes under ultraviolet light after the chromosomes are stained with quinacrine. The Q in Q band stands for Quinacrine, an agent… … Medical dictionary
band — n. [A.S. bindan, band] 1. A transverse marking broader than a line. 2. (ARTHROPODA: Insecta) a. In Diptera, the chromosome pairing of like chromomeres that produce the giant chromosomes. b. In male Lepidoptera, a descriptive term of a linear… … Dictionary of invertebrate zoology
Derivative chromosome — A derivative chromosome (der) is a structurally rearranged chromosome generated either by a rearrangement involving two or more chromosomes or by multiple aberrations within a single chromosome (e.g. an inversion and a deletion of the same… … Wikipedia
Yeast Artificial Chromosome — Ein YAC (Yeast Artificial Chromosome) ist ein künstliches Chromosom, welches der Hefe nachempfunden ist. Es dient als Vektor und erlaubt im Gegensatz zu den Cosmiden eine Klonierung von größeren Genomabschnitten. Das erste YAC entstand als… … Deutsch Wikipedia