In this article we will discuss about the regulation of levels of transcription by DNA methylation. In most higher plants and animals, the DNA is often modified after synthesis by the enzymatic conversion of many cytosine bases to 5-methylcytosine bases (Fig. 5.8). The extent of methylation varies from species to species; in mammals, from 2 […]
Transcription by DNA Methylation | Genetics
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Chromosomes: Location, Shape and Size | Genetics
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In this article we will discuss about:- 1. Background of Chromosomes 2. Location of Chromosomes 3. Number 4. Shape 5. Size 6. Chemistry 7. Chemical Components 8. Physiology. Historical Background of Chromosomes: i) The term chromosome (Gr. chromo, color; soma, body), when used by Waldeyer in 1888, represented the darkly stained individualized bodies located in […]
Does Z-DNA Play a Regulatory Role? | Genetics
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Get the answer of: Does Z-DNA Play a Regulatory Role? One of the more interesting discoveries of the last decade was that segments of DNA that have sequences in which purines and pyrimidines alternate along each strand can form left-handed double helices. The Watson-Crick B-form of DNA is a right-handed double helix. The novel left-handed […]
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