In this article we will discuss about the properties and functions of genetic material in organisms. The genetic material must have some well-defined properties to fulfill its functions. These are enumerated below: 1. It must act as a store-house of information and must be able to transmit the information to the biochemical machinery of the cell. 2. It must be [...]
The below mentioned article provides notes on DNA replication in prokaryotic and eukaryotic organisms. Notes # Meaning of DNA Replication: A double-stranded DNA molecule is capable of producing two identical molecules from nucleotide monomers with the help of some proteins. This is known as DNA replication. DNA needs replication, because every cell produced by division of a pre-existing cell must [...]
The following points highlight the top six repair mechanisms of damaged DNA. The repair mechanisms are: 1. Photo Reactivation 2. Excision Repair 3. Re-Combinational Repair Mechanism 4. Repair of DNA by Homologous Recombination 5. SOS Repair of Damaged DNA 6. Mismatch Repair. Repair Mechanism # 1. Photo Reactivation: We know that exposure of UV-irradiated bacteria immediately afterwards to visible light [...]