BioScience Dictionary

 
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Found Autosome 6 times.

Displaying results 1 to 10.

1. Autosomal
Of or relating to autosome s.

2. 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

3. Autosome
A chromosome not involved in sex determination. The diploid human genome consists of 46 chromosomes, 22 pairs of autosome s, and 1 pair of sex chromosome s (the X and Y chromosomes).

4. Autosomes
The chromosomes other than the sex chromosomes . Each member of an autosome pair (in diploid organisms) is of similar length and in the genes it carries.

5. Huntington's disease (Huntington's chorea)
An inherited degenerative neuropsychiatric disorder which is caused by a dominant gene on an autosome . Symptoms include chorea (involuntary dancelike movements), clumsiness, slurred speech, depression, irritability, apathy, and losses of attention span, short-term memory and intellectual speed. Symptoms typically begin between the ages of 30 and 50 (though they can start at any other time), and not all individuals will have the same symptoms. Symptoms are treated as they appear. There is currently no cure.

6. Sex chromosomes
The chromosome s which determine the gender of the organism (for organisms whose gender is determined by gene s rather than by environment). In humans, fruit flies, and other animals where the male is the heterogametic sex , they are the X chromosome s and Y chromosome s. In birds, moths, and other animals where the female is the heterogametic sex, they are the W chromosome s and Z chromosome s. For humans, the sex chromosomes are the 23rd pair of all chromosomes. The sex chromosomes of most plants (when they exist) are also known as X and Y chromosomes; Ginkgo trees have a different system of sex chromosomes. Compare autosome .

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