chromosomal aberration


chromosomal aberration
An abnormal change in chromosome structure or number, including deficiency, duplication, inversion, translocation, aneuploidy, polyploidy, or any other change from the normal pattern.. Although it can be a mechanism for enhancing genetic diversity, most alterations are fatal or debilitating, especially in animals.

Glossary of Biotechnology for Food and Agriculture . 2015.

Look at other dictionaries:

  • 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 — see chromosome aberration …   Dictionary of invertebrate zoology

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

  • penta-X chromosomal aberration — the occurrence of five X chromosomes in a female …   Medical dictionary

  • tetra-X chromosomal aberration — the occurrence of four X chromosomes in a female or tetra XY in the male …   Medical dictionary

  • triple-X chromosomal aberration — the occurrence of three X chromosomes in a female or triple XY in the male …   Medical dictionary

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

  • chromosomal anomaly — chromosome anomaly see under aberration …   Medical dictionary

  • chromosome aberration — See: chromosomal aberration …   Glossary of Biotechnology

  • inversion — 1. A turning inward, upside down, or in any direction contrary to the existing one. 2. Conversion of a disaccharide or polysaccharide by hydrolysis into a monosaccharide; specifically, the hydrolysis of sucrose to d glucose and d fructose; so… …   Medical dictionary