Question

Explain the termination of Polymerase I, II, and III.

Answer 1

• A polymerase is an enzyme that synthesize long chain of polymers or nucleic acids. DNA polymerase are used to assemble DNA molecules and RNA polymerase are used to assemble RNA molecules.
• The main function of DNA polymerase is to synthesize DNA from deoxyribonucleotides.The function of DNA polymerase is to replicate, proof read and repair DNA.DNA polymerase I, and DNA polymerase III are the main DNA polymerase involved in DNA replication.DNA polymerase II is responsible for the association and dissociation of the DNA strand to the catalytic subunit.
• RNA polymerase is an enzyme that is responsible for copying a DNA sequence into an RNA sequence during the process of transcription.
• RNA polymerase I transcribes rRNA genes, RNA polymerase II transcribes mRNA, miRNA, snRNA, and snoRNA genes, and RNA polymerase III transcribes tRNA and 5S rRNA genes.