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Chromosome abnormality - Wikipedia, the free encyclopedia
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A chromosome anomaly , abnormality or aberration reflects an atypical number of chromosomes or a structural abnormality in one or more chromosomes. A karyotype refers to a full set of chromosome...
en.wikipedia.org/wiki/Chromosome_abnormality
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Chromosomal abnormality resulting from two breaks in a single chromosome. Inversion: The segment between two breakpoints is inverted before resealing the breaks. Deletion: The breaks reseal without including the segment between breakpoints.
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www.web-books.com/MoBio/Free/Ch8E.htm
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A chromosome abnormality reflects an abnormality of chromosome number or structure. There are many types of chromosome abnormalities. However, they can be organized into two basic groups:
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The lymphoid clone showed a karyotypic abnormality involving the long arm of chromosome 5 in a translocation (5;6). Few cases of CD complicated by ALL have been previously reported.
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www.medscape.com/medline/abstract/10834511
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OBJECTIVE: To investigate the correlation of male infertility with abnormality of chromosomal quantity and construction and with the deletion of DAZ gene copy in the AZFc region of Y chromosome. ... Multi-PCR and PCR-RFLP were used to analyze the deletion of DAZ gene copies in the AZFc region of Y chromosome.
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www.medscape.com/medline/abstract/16078663
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Turner syndrome is a sex chromosome abnormality that affects about 1 in 2,500 girls (3, 4). Girls with Turner syndrome are missing all or part of one X chromosome. They usually are infertile and do not undergo normal pubertal changes unless they are treated with sex hormones.
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www.marchofdimes.com/professionals/14332_1209.asp
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There are a variety of different chromosomal disorders, depending upon what is actually wrong with the chromosome. A very common abnormality is trisomy. A trisomy occurs when a baby has 3 copies of a chromosome instead of just two.
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www.pregnancy-info.net/chromosomal_abnormalities.html
www.pregnancy-info.net/chromosomal_abnormalities.html
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