chromosome aberration n.
A deviation in the normal number of chromosomes or in their morphology.
[kroh-muh-sohm] /ˈkroʊ məˌsoʊm/ noun, Genetics. 1. any of several threadlike bodies, consisting of chromatin, that carry the genes in a linear order: the human species has 23 pairs, designated 1 to 22 in order of decreasing size and X and Y for the female and male sex chromosomes respectively. /ˈkrəʊməˌsəʊm/ noun 1. any of the […]
- Chromosome band
noun 1. any of the transverse bands that appear on a chromosome after staining. The banding pattern is unique to each type of chromosome, allowing characterization chromosome band n. An area across the width of a chromosome that stains darkly or in a contrasting manner.
- Chromosome map
noun 1. a graphic representation of the positions of genes on chromosomes, obtained by observation of chromosome bands or by determining the degree of linkage between genes See also genetic map noun in genetics, a diagram showing the relative positions of the chromosome genes
- Chromosome mapping
chromosome mapping n. The process of determining the position of specific genes on specific chromosomes and constructing a diagram of each chromosome showing the relative positions of the genes.