Definitions for recessive gene
re·ces·sive gene

Princeton's WordNetRate this definition:0.0 / 0 votes

1. recessive genenoun

   gene that produces its characteristic phenotype only when its allele is identical

   "the recessive gene for blue eyes"

WikipediaRate this definition:0.0 / 0 votes

1. recessive gene

   In genetics, dominance is the phenomenon of one variant (allele) of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome. The first variant is termed dominant and the second recessive. This state of having two different variants of the same gene on each chromosome is originally caused by a mutation in one of the genes, either new (de novo) or inherited. The terms autosomal dominant or autosomal recessive are used to describe gene variants on non-sex chromosomes (autosomes) and their associated traits, while those on sex chromosomes (allosomes) are termed X-linked dominant, X-linked recessive or Y-linked; these have an inheritance and presentation pattern that depends on the sex of both the parent and the child (see Sex linkage). Since there is only one copy of the Y chromosome, Y-linked traits cannot be dominant or recessive. Additionally, there are other forms of dominance such as incomplete dominance, in which a gene variant has a partial effect compared to when it is present on both chromosomes, and co-dominance, in which different variants on each chromosome both show their associated traits. Dominance is a key concept in Mendelian inheritance and classical genetics. Letters and Punnett squares are used to demonstrate the principles of dominance in teaching, and the use of upper case letters for dominant alleles and lower case letters for recessive alleles is a widely followed convention. A classic example of dominance is the inheritance of seed shape in peas. Peas may be round, associated with allele R, or wrinkled, associated with allele r. In this case, three combinations of alleles (genotypes) are possible: RR, Rr, and rr. The RR (homozygous) individuals have round peas, and the rr (homozygous) individuals have wrinkled peas. In Rr (heterozygous) individuals, the R allele masks the presence of the r allele, so these individuals also have round peas. Thus, allele R is dominant over allele r, and allele r is recessive to allele R. Dominance is not inherent to an allele or its traits (phenotype). It is a strictly relative effect between two alleles of a given gene of any function; one allele can be dominant over a second allele of the same gene, recessive to a third and co-dominant with a fourth. Additionally, one allele may be dominant for one trait but not others. Dominance differs from epistasis, the phenomenon of an allele of one gene masking the effect of alleles of a different gene.

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1. recessive gene

   A recessive gene is a type of gene that can only express its genetic trait when it is paired with another identical recessive gene. It gets masked or overpowered by the presence of a dominant gene. For a recessive gene trait, such as certain diseases or physical characteristics, to be visible or expressed in an individual, the person must have two copies of the recessive gene, one from each parent.

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1. • Gene

How to pronounce recessive gene?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say recessive gene in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of recessive gene in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of recessive gene in Pythagorean Numerology is: 1

Examples of recessive gene in a Sentence

1. Jacqueline Robinson:

   They're essentially the marine equivalent of an island species, the vaquitas' naturally low abundance has allowed them to gradually purge highly deleterious recessive gene variants that might negatively affect their health under inbreeding.