In this article we will discuss about the replication of eukaryotic chromosome. Taylor in 1958 used radioactive thymidine (3H-thymidine) to label Viciafaba root tip chromosomes. He showed that the chromosomes replicated in a semiconservative manner, and proposed that each chromatid was made up of a single DNA molecule. Thus each sister chromatid is composed of […]
Replication of Eukaryotic Chromosome | Macromolecules
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Nucleic Acids: Meaning and Structure | Macromolecules
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In this article we will discuss about the meaning and structure of nucleic acids. Meaning of Nucleic Acids: Nucleic acids are a long chain polymers of nucleotides which are joined together by means of phosphodiester linkages. In phosphodiester bonds, one phosphoric acid molecule forms bonds with the 3′ carbon of one pentose molecule as well […]
Replication of Genetic RNA | Nucleic Acids
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In this article we will discuss about the replication of genetic RNA. Several viruses and bacteriophages contain single- or double-stranded RNA as their genetic material (Table 3.1). Replication of these RNA chromosomes occurs in the host cytoplasm following one of the two modes given below: (i) Direct use of RNA template for RNA synthesis (RNA […]
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