noun
definition
A gene that is recessive.
adjective
definition
Going back; receding.
definition
Able to be masked by a dominant allele or trait.
definition
(by extension) Not dominant; whose effect is masked by stronger effects.
Examples of recessive in a Sentence
It happened, however, that a recessive colour in one generation becomes the dominant in a succeeding one.
If a mother is a carrier for an X-linked recessive form of EDS, she may have affected or unaffected sons, or carrier or unaffected daughters, depending on the second sex chromosome inherited from the father.
If one parent has been diagnosed with an autosomal dominant form of VWD or both parents are carriers for an autosomal recessive form of VWD, then prenatal testing should be considered.
Then, in the scheme below, if A b and (A)N b are two brothers who both marry normal wives N, their children N(A) in the first case will be all normal in appearance but will be carrying albinism recessive; and in the second case some will be pure normal individuals N, and some will be like the children of the first brother, i.e.
It does n't follow a clear mendelian recessive or dominant pattern.
The mother also has a 50 percent chance of passing the defective recessive gene to her daughters who will be carriers of the disorder (like their mother), but will not show symptoms of the disease.
Autosomal recessive inheritance carries a risk of accompanying learning disabilities.
The dominant and recessive alleles may not be so in other pairings.
The pattern of inheritance (the way it is inherited) is called autosomal recessive.
One theory is that mutated alleles are usually recessive.
In heredity, complete albinism among animals is always recessive; and partial albinism (piebald) is always recessive to complete pigmentation (self-coloured).
Sons, however will have only the recessive gene from the mother.
If a father with an X-linked recessive form of EDS passes a copy of his X chromosome to his children, the sons will be unaffected and the daughters will be carriers.
The inherited form (autosomal recessive) is extremely rare and severe.
Recessive disorder-Disorder that requires two copies of the predisposing gene one from each parent for the child to have the disease.
Albinism is a autosomal recessive disease, which means that a person must have two copies of the defective gene to exhibit symptoms of the disease.
This condition has an X-linked, recessive pattern of inheritance, meaning that the defective gene is carried on the X chromosome.
Wolman's disease is caused by a genetic defect with a recessive pattern of inheritance that results in a deficiency of an enzyme that breaks down cholesterol.
An individual displaying a recessive trait must have inherited one copy of the defective gene from each parent.
A-T is a recessive disorder, meaning that it affects children who carry two copies of a defective (mutated) A-T gene, one copy from each parent.
The A-T mode of inheritance is autosomal recessive (AR) and requires two copies of the predisposing gene-one from each parent-for the child to have the disease.
Parents do not exhibit symptoms, but they each carry a recessive gene that may cause A-T in their offspring.
Autosomal recessive inheritance means that a person with FMF has mutations in both copies of the MEFV gene.
If both parents carry the same autosomal recessive gene, there is a one in four chance with each pregnancy that the child will inherit both recessive genes and develop FMF.
A family history of FMF or its symptoms would obviously be an important clue, but the recessive nature of FMF means there usually is no family history.
In this form of SCID the lymphocyte or white blood evaluation is identical to X-linked SCID but is autosomal recessive and, therefore, occurs in girls and boys.
All MPS disorder except MPS II are inherited in an autosomal recessive manner.
An individual with an autosomal recessive disorder inherits one non-working genes from each parent.
When two people are carriers for an autosomal recessive disorder, they have a 25 percent chance with each pregnancy to have a child with the disorder.
However, these children are not at risk to develop the disorder unless the other parent is a carrier or affected with the same autosomal recessive condition.
Unlike the other MPS conditions, MPS II is inherited in an X-linked recessive manner, which means that the gene causing the condition is located on the X chromosome, one of the two sex chromosomes.
Recessive gene-A type of gene that is not expressed as a trait unless inherited by both parents.
Because Tay-Sachs is a recessive disorder, only people who receive two defective genes (one from the mother and one from the father) will actually have the disease.
A parent with only one gene for an autosomal recessive disorder does not display symptoms of the disease.
Neither parent may have symptoms of the disease, but each carries a recessive defective gene for it.
Most peroxisomal disorders are inherited autosomal recessive diseases.
Autosomal recessive mutation-A pattern of genetic inheritance where two abnormal genes are needed to display the trait or disease.
Mild and severe hemophilia A are inherited through a complex genetic system that passes a recessive gene on the female chromosome.
Previously, researchers had seen this recurrence as evidence of recessive inheritance of OI type II.
The less common form, autosomal recessive hyper-IgM syndrome (ARHIM), occurs in children who have inherited an abnormal gene from both parents.
Such diseases are called autosomal recessive diseases.
A severe childhood form is similar in appearance to DMD but is inherited as an autosomal recessive trait.
The normal PAH gene is dominant to recessive PKU mutations.
A recessive genetic trait, such as PKU, is one that is expressed-or shows up-only when two copies are inherited (one from each parent).
Genetic abnormalities such as craniosynostosis are described by the type of chromosome that carries the abnormal gene and whether the gene is recessive or dominant.
In order for a child to inherit an autosomal recessive abnormality, both parents have to be carriers of the abnormal gene.
A recessive condition occurs when a child receives two changed or mutated copies of the gene for a particular condition, such as PDA (one copy from each parent).
Individuals with a single changed or mutated copy of a gene for a recessive condition are known as carriers and have no health problems related to the condition.
The mutated gene that produces XLA is a recessive gene.
The autosomal recessive forms of spinal muscular atrophy are the most common inherited cause of infant death.