recessive (redirected from recessivity)

re·ces·sive  (r-ssv)

adj.

1. Tending to go backward or recede.

2.

a. Genetics Of, relating to, or designating an allele that does not produce a characteristic effect when present with a dominant allele.

b. Of or relating to a trait that is expressed only when the determining allele is present in the homozygous condition.

n. Genetics

1. A recessive allele or trait.

2. An organism having a recessive trait.

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re·cessive·ly adv.

re·cessive·ness n.

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recessive

Adjective

1. tending to recede

2. Genetics (in a pair of genes) designating a gene that has a characteristic which will only be passed on if the other gene has the same characteristic

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recessive  (r-ssv)

Relating to the form of a gene that is not expressed as a trait in an individual unless two such genes are inherited, one from each parent. In an organism having two different genes for a trait, the recessive form is overpowered by its counterpart, or dominant, form located on the other of a pair of chromosomes. In humans, lack of dimples is a recessive trait, while the presence of dimples is dominant. See more at carrierinheritance Compare dominant.

Thesaurus

Noun	1.	recessive - an allele that produces its characteristic phenotype only when its paired allele is identical recessive allele allele, allelomorph - (genetics) either of a pair (or series) of alternative forms of a gene that can occupy the same locus on a particular chromosome and that control the same character; "some alleles are dominant over others"
Adj.	1.	recessive - of or pertaining to a recession recessionary
	2.	recessive - (of genes) producing its characteristic phenotype only when its allele is identical genetic science, genetics - the branch of biology that studies heredity and variation in organisms dominant - (of genes) producing the same phenotype whether its allele is identical or dissimilar