chromosomal translocation

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• Chromosomal translocation — of the 4th and 20th chromosome. In genetics, a chromosome translocation is a chromosome abnormality caused by rearrangement of parts between nonhomologous chromosomes. A gene fusion may be created when the translocation joins two otherwise… …   Wikipedia

• Translocation — may refer to: * Chromosomal translocation in genetics * Transport of food through phloem in plants * Transport of systemic pesticides through xylem or (sometimes) phloem in plants * Protein translocation, a process in protein biosynthesis *… …   Wikipedia

• Chromosomal polymorphism — In genetics, chromosomal polymorphism is a condition where one species contains members with varying chromosome counts or shapes. Polymorphism is a general concept in biology where more than one version of a trait is present in a population. In… …   Wikipedia

• Chromosomal inversion — A clay model showing why heterozygous inversion loops are visible in polytene chromosome preparations …   Wikipedia

• chromosomal disorder — Syndrome caused by chromosome abnormality. Normally, humans have 23 pairs of chromosomes, including one pair of sex chromosomes. Any variation from this pattern causes abnormalities. A chromosome may be duplicated (trisomy) or absent (monosomy);… …   Universalium

• Chromosomal crossover — Thomas Hunt Morgan s illustration of crossing over (1916) A double cros …   Wikipedia

• translocation — 1. Transposition of two segments between nonhomologous chromosomes as a result of abnormal breakage and refusion of reciprocal segments. 2. Transport of a metabolite across a biomembrane. [trans + L. location, placement, fr. loco, to place]… …   Medical dictionary

• translocation Down syndrome — Down syndrome in which the excess chromosomal material (the long arm of chromosome 21) is translocated to another acrocentric chromosome (in standard trisomy 21 there is an additional chromosome 21). A carrier of the translocation chromosome has… …   Medical dictionary

• chromosomal aberration — noun any change in the normal structure or number of chromosomes; often results in physical or mental abnormalities • Syn: ↑chromosomal anomaly, ↑chrosomal abnormality, ↑chromosonal disorder • Hypernyms: ↑aberrance, ↑aberrancy, ↑aberration, ↑ …   Useful english dictionary

• chromosomal aberration — Genetics. any irregularity or abnormality of chromosome distribution, number, structure, or arrangement. Cf. deletion, duplication, inversion, translocation. * * * …   Universalium

• translocation — /trans loh kay sheuhn, tranz /, n. 1. a change of location. 2. Genetics. a chromosomal rearrangement in which a segment of genetic material from one chromosome becomes heritably linked to another chromosome. 3. Bot. the conduction of soluble food …   Universalium