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Found Recessive 44 times.

Displaying results 1 to 10.

1. Adrenogenital syndrome
Adrenogenital syndrome is the autosomal recessive form of congenital adrenal hyperplasia due to 21-hydroxylase deficiency. 21-hydroxylase is an enzyme needed in the synthesis of cortisol . Diminished levels of cortisol results in excessive secretion of ACTH which stimulates adrenal hyperplasia which secretes excessive androgen . Affected genetic females under the influence of androgen would display masculine characteristics such as hirsutism (excessive body hair), small breasts, heavy arms and legs and enlarged clitoris. Affected genetic males display enlargement of penis with small testes, and increased pigmentation. With early treatment, prognosis is good.

2. Agammaglobulinemia (adj.: agammaglobulinemic)
A rare disease where the body is unable to produce immune antibodies due to the lack of gamma globulin , a type of immunoglobulin , in the blood. The disease can be acquired or inherited as an X-linked recessive genetic disease.

3. Albinism
Genetic condition caused by the body's inability to manufacture pigments; an autosomal recessive trait.

4. Alkaptonuria (dark urine disease)
This illness, caused by a recessive gene that causes a deficiency of the enzyme homogensitic acid deoxygenase, was the first recognized genetic disease. It is characterized by abnormal deposits in the connective tissue and urine which turn dark when exposed to air. Severe arthritis and blockages in arteries and heart valves can occur in later stages of the disease. Its incidence is about one in a million.

5. Alport's syndrome (Alport syndrome)
Alport's syndrome consists of progressive nephritis , nerve deafness, leading to kidney failure in the second to third decades of life. Autosomal dominant, autosomal recessive, and X-linked inheritance are noted.

6. Autosomal recessive
An autosomal recessive gene is one which is required in two copies on an autosome to be active in an organism. For instance, a person who carry two copies of the same abnormal gene (in other words, this person is homozygous for the gene) will experience effects from that gene (for instance, he or she might then suffer from a disease coded by that gene). The gene can be inherit ed from both parents who carry the gene; sons and daughters have an equal chance of inheriting the gene. If a person has a genetic disease but his or her parents seem normal, then this probably means that: * The parents of this person are heterozygous , unaffected carriers of the disease, or * The person inherited one copy of the gene from a parent, and the other "good" copy underwent a mutation early in the person's embryonic development

7. Balanced lethal system
A population with non-linked, recessive allele s of a gene , where an individual who has two copies of the recessive allele and is therefore homozygous is dead, while an individual who has only one copy of it, and one copy of a different allele (and is heterozygous ) survives.

8. Balanced stock
A genetic strain of any of several lab organisms (like fruit flies) which can be maintained as heterozygous individuals without requiring constant artificial selection for the heterozygotes, due to a number of lethal recessive gene s with the result that the homozygous females are sterile (unable to produce offspring) and the males with the wrong recessive alleles are dead. (Male fruit flies are not homozygous or heterozygous because they only have one allele per particular genetic loci in question).

9. Bobbed
The name for a variety of Drosophila (a fruit fly) mutation where the bristles (mostly on the back of the head) are very short and thin compared to normal fruit fly bristles. Also, the number of copies of gene s encoding rRNA molecules are reduced.The mutant allele is located on the sex chromosome s and is recessive .

10. Celiac disease (gluten enteropathy, celiac sprue, gluten intolerance)
Celiac disease is caused by an intolerance to gluten, a protein found in grains such as wheat, rye and oats (but not in rice or buckwheat). It is characterized by damage to the mucosa of the proximal small intestine, which results in poor absorption of most nutrients. It can also cause a wide range of maladies such as diarrhea, gas, and may contribute to mental depression in some people. Some forms of this disease are recessively inherited. The condition can be confirmed via a biopsy of the small intestine.


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