recessive


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Related to recessive: Recessive allele, homozygous

recessive

 [re-ses´iv]
1. tending to recede.
2. in genetics, incapable of expression unless the responsible allele is carried by both members of a set of homologous chromosomes. See also recessive gene.
3. an allele or trait that has this characteristic.

re·ces·sive

(rē-ses'iv),
1. Drawing away; receding.
2. In genetics, denoting a trait due to a particular allele or alleles at a single locus that does not manifest itself unless mutant alleles are present on both homologous chromosomes of a pair.

recessive

/re·ces·sive/ (re-ses´iv)
1. tending to recede; in genetics, incapable of expression unless the responsible allele is carried by both members of a pair of homologous chromosomes.
2. a recessive allele or trait.

recessive

(rĭ-sĕs′ĭv)
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.

re·ces′sive·ly adv.

recessive

[rises′iv]
Etymology: L, recedere
pertaining to or describing a gene, the effect of which is masked or hidden if there is a dominant gene at the same locus. If both genes are recessive and produce the same trait, the trait is expressed in the individual.

recessive

Genetics A genetic trait that is not phenotypically expressed in a heterozygous or partially heterozygous cell, but rather only in a homozygous or hemizygous state. See Phenotype, Trait. Cf Dominant.

re·ces·sive

(rĕ-ses'iv)
1. Drawing away; receding.
2. genetics Denoting a trait due to a particular allele that does not manifest itself in the presence of other alleles that generate traits dominant to it.

recessive

Pertaining to an alternative form of a gene (ALLELE) that produces an effect only when carried by both members of the pair of homologous chromosomes (only when HOMOZYGOUS). People with heterozygous alleles for a condition are called carriers. A recessive gene has no effect in the presence of a DOMINANT allele either because of its inactivity or because of the absence of a product.

Recessive

Refers to an inherited characteristic or trait that is expressed only when two copies of the gene responsible for it are present.

autosomal-recessive inheritance

genetic inheritance pattern where an abnormal gene (inherited from one parent) is non-dominant over the normal gene (inherited from the other parent); the individual does not show the abnormal gene-related characteristics, yet carries a copy of the abnormal gene which may pass to the progeny; if the abnormal gene is inherited from both parents, the individual will show abnormal gene characteristics

re·ces·sive

(rĕ-ses'iv)
Drawing away; receding.
References in periodicals archive ?
Based on estimates of the proportion of recessive mutations that cause death during fetal development, the team concluded that each founder carried approximately one to two recessive mutations that cause sterility or death before adolescence.
In case of autosomal recessive disorders, the risk of having an affected child is 25 %, wherein the partners are carriers for the same genetic disorder.
With the cost of DNA sequencing now inexpensive enough to consider offering trait carrier screening to prospective parents for the many rare conditions that in aggregate drive significant childhood morbidity and mortality and since screening could potentially lead to fewer couples having children with devastating autosomal recessive conditions, then perhaps it is time to make this testing widely available to any adult considering future childbearing.
In this issue, Phadke and colleagues (11) have studied the locus heterogeneity and mutational spectra of eight patients with autosomal recessive infantile malignant osteopetrosis; six patients had mutations in TCIRG1 and two patients harboured mutations in CLCN7.
It is a recessive disease and neither of my parents have the disease.
Two-year-old Tie Davey, from Llangefni, suffers from Recessive Dystrophic Epidermolysis Bullosa(EB) which causes his skin to blister and fall off at the slightest friction.
The company is taking this step in line with recessive market trends and expected benefits to the company's overall CAFE ratings.
The direct cost of treating just one carrier of thalassaemia - a recessive blood disease - is about RO2,700 per year.
I am looking forward to meeting new prospects and recommending the financial packages that could safeguard the future of companies as we head into recessive conditions.
The father of her litter has one dominant gene and one recessive gene for ear shape.
Business thrives in good and recessive economies and is ready for new and aggresive owners.
Experts from Froglife believe the "highly unusual" discovery could point to a significant frog population carrying the rare recessive gene for albinism.