Heterozygosity
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Heterozygosity
Heterozygosity (pronunciation: /ˌhɛtəroʊzaɪˈɡɒsɪti/) is a term used in genetics to describe the condition of an individual containing different alleles at a particular genetic locus on a pair of homologous chromosomes.
Etymology
The term 'Heterozygosity' is derived from the Greek words 'heteros' meaning different and 'zygotos' meaning yoked or joined. It was first used in the field of genetics in the early 20th century.
Related Terms
- Homozygosity: The state of having identical alleles at a particular locus on a pair of homologous chromosomes.
- Allele: One of two or more versions of a gene that are found at the same place on a chromosome.
- Gene: A segment of DNA that is responsible for the physical and inheritable characteristics of an organism.
- Chromosome: A thread-like structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
- Genetic Locus: The specific location or position of a gene's DNA sequence on a chromosome.
- Homologous Chromosomes: Chromosomes that are similar in shape, size, and genetic content.
See Also
References
External links
- Medical encyclopedia article on Heterozygosity
- Wikipedia's article - Heterozygosity
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