Archive | Chromosome Structure

Inversions in Natural Populations

In this article we will discuss about the inversions in natural populations which is caused when the genes in a section of a chromosome is reversed. Inversions occur spontaneously in a large number of plant and animal species. But the most extensive work has been done in Drosophila in which they have been detected in a rather high frequency. In [...]

By |2016-07-12T13:51:00+00:00July 12, 2016|Chromosome Structure|Comments Off on Inversions in Natural Populations

Inversions in Humans

In this article we will discuss about the inversions in humans which occurs when the genes in a section of a chromosome is reversed. Pericentric Inversion: There are a number of reports of pericentric inversions in human. Breaks occur in both, short (p) and long (q) arms of the chromosomes. The length of inverted segment can be precisely identified by [...]

By |2016-07-12T13:51:00+00:00July 12, 2016|Chromosome Structure|Comments Off on Inversions in Humans

Genetical and Cytological Methods of Locating Inversion Break Points

In this article we will discuss about the genetical and cytological methods of locating inversion break points. Cytological Location: Cytological analysis is an important method of the physical location of the break points of inversion. (a) In plants like maize, and other organisms where pachytene analysis is easy, the breakpoints can be located by measuring the position of the inversion [...]

By |2016-07-12T13:51:00+00:00July 12, 2016|Chromosome Structure|Comments Off on Genetical and Cytological Methods of Locating Inversion Break Points
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