In this article we will discuss about some of the important structural features of DNA. 1. DNA exists as a double helix in which the two polynucleotide chains are coiled about one another in a spiral with a diameter of about 20Å (Fig. 1). 2. Concentration of thymine was always equal to the concentration of […]
Structural Features of DNA | Genetics
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Replication of DNA | Genetics
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In this article we will discuss about the mechanism for the replication of DNA. The mechanism for the synthesis of DNA proposed by Watson and Crick offered the important advantage of explaining how new DNA molecules could be exact replicates of the old. According to Watson and Crick, each single strand is a template on […]
Operon: Definition, Features and Modulation | Genetics
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In this article we will discuss about:- 1. Definition of Operon 2. Features of Operon 3. Effector Control of Messenger Synthesis 4. Polarity 5. Modulation. Definition of Operon: In 1961 two Nobel laureates, Jacob and Monod, postulated the existence of new genetic unit, the operon to explain the integrated control of the action of genes […]
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