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Genetic disorders that can be revealed by kariotype analysis.
Member rating: No Rating | Words: | Submitted: Wed Mar 17 2004
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Genetic disorders that can be revealed by kariotype analysis Among the numerous genetic disorders that contemporary medicine knows about are some that are caused by changes in number and structure of chromosomes. Therefore, they can be investigated by kariotype analysis. I would like to describe some of the most well-known disorders caused by numerical aberrations in chromosomes. First of all, numerical changes can be either: * Polyploidy - condition in which there are more than two complete sets of corresponding chromosomes. Triploidy and tetraploidy are the most common forms of polyploidy. It is naturally occurring in plants. In humans, polyploidy is lethal. * Aneuploidy - condition in which in one pair of chromosomes there is one more (trisomy) or one fewer (monosomy) chromosome than there should be. It is the most common form of chromosomal aberrations (1/200 newborns) and some of them will be described here. The interesting fact...
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