Hypervariable
Encyclopedia
Hypervariable may refer to:
- Hypervariable sequence, a segment of a chromosomeChromosomeA chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions.Chromosomes...
characterised by considerable variation in the number of tandem repeatTandem repeatTandem repeats occur in DNA when a pattern of two or more nucleotides is repeated and the repetitions are directly adjacent to each other. -Example:An example would be:in which the sequence A-T-T-C-G is repeated three times.-Terminology:...
s at one or more loci - Hypervariable locus, a locus with many alleleAlleleAn allele is one of two or more forms of a gene or a genetic locus . "Allel" is an abbreviation of allelomorph. Sometimes, different alleles can result in different observable phenotypic traits, such as different pigmentation...
s; especially those whose variation is due to variable numbers of tandem repeats - Hypervariable regionHypervariable regionA hypervariable region is a location within nuclear DNA or the D-loop of mitochondrial DNA in which base pairs of nucleotides repeat or have substitutions...
(HVR), a chromosomal segment characterized by multiple alleles within a population for a single genetic locus