Definition for Difference between revisions of "Deletion"
From Biology Forums Dictionary
(Created page with "A missing region of a chromosome.") |
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| − | A missing region of a chromosome. | + | 1) A missing region of a chromosome. |
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| + | 2) In genetics, a deletion is a mutation (a genetic aberration) in which a part of a chromosome or a sequence of DNA is missing. Deletion is the loss of genetic material. Any number of nucleotides can be deleted, from a single base to an entire piece of chromosome. Deletions can be caused by errors in chromosomal crossover during meiosis. This causes several serious genetic diseases. Deletion also causes frameshift. | ||
Revision as of 15:39, 28 May 2014
1) A missing region of a chromosome.
2) In genetics, a deletion is a mutation (a genetic aberration) in which a part of a chromosome or a sequence of DNA is missing. Deletion is the loss of genetic material. Any number of nucleotides can be deleted, from a single base to an entire piece of chromosome. Deletions can be caused by errors in chromosomal crossover during meiosis. This causes several serious genetic diseases. Deletion also causes frameshift.