Category Archives for "UNIT 3"

What is DNA Polymerase and its function in DNA Replication

The first postulate the central dogma, experimentally proved and is that the DNA is capable of self-replication.┬áThis was immediately deduced by Watson and Crick that each DNA strand uniquely specifies its complement, but it took long for the details of the mechanism are elucidated. The first question was that of conservation of replication mechanism.┬áThe now […]

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Lac Operon : Regulation of Gene Expression in Prokaryotes

What is Gene Expression? Definition of Gene Regulation is “the control of gene regulation and expression is very well understood in prokaryotes. The switching on and off of the gene to regulate the synthesis of various proteins (the enzymes, for example) is essential. The fluctuation in the immediate environment of the organism is coped with […]

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Cap Structure in mRNA: Basics and Structure

Cap structure in mRNA (Guanyl cap) is a chemical modification of mRNA molecules in eukaryotes, which drastically increases the stability of RNA and important for the transport of the RNA out of the nucleus into the cytoplasm and the subsequent translation of mRNAs by the ribosomes. RNA Polymerase: The Enzyme Structure and Its Types Deoxyribonucleic […]

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