Home > Terms > English, UK (UE) > Recessive
Recessive
1) A gene which will be expressed only if there are 2 identical copies or, for a male, if one copy is present on the X chromosome.
2) Recessive is a quality found in the relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent. If the alleles are different, the dominant allele will be expressed, while the effect of the other allele, called recessive, is masked. In the case of a recessive genetic disorder, an individual must inherit two copies of the mutated allele in order for the disease to be present.
3) A gene that is phenotypically manifest in the homozygous state but is masked in the presence of a dominant allele.
- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Health care
- Category: Genetic disorders
- Company: National Library of Medicine
- Product:
- Acronym-Abbreviation:
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