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 one of the two progeny [...]
In this article we will discuss about:- 1. Subject-Matter of Replication and Synthesis of Nucleic Acids 2. Unidirectional and Bidirectional Replications of Nucleic Acids 3. Enzymes and Proteins Involved in DNA Replication and Repair 4. Replication of Double-Stranded Circular DNA 5. RNA Primer Synthesis 6. Leading Strand and Lagging Strand and Other Details. Contents: Subject-Matter of Replication and Synthesis of Nucleic [...]
In this article we will discuss about the non-genetic RNA. Non-genetic RNAs (tRNA, rRNA, mRNA) are synthesized on DNA templates through the process of transcription. The enzyme involved in transcription is "DNA dependent RNA polymerase", or simply "RNA polymerase". In E. coli, a single RNA polymerase catalyzes the synthesis of all kinds of RNAs. In eukaryotes, there are at least [...]