Which of the Following is an Enzyme That Most RNA

Question

Which of the following is an enzyme that most RNA viruses encode in their genome?
A) DNA-dependent-RNA-polymerase
B) RNA-dependent-RNA-polymerase
C) DNA-dependent-DNA-polymerase
D) RNA-dependent-protein-synthetase

Accepted Answer

RNA viruses replicate their genome using RNA-dependent-RNA-polymerase (also known as RNA replicase), which is encoded in their genome. DNA-dependent-RNA-polymerase (A) and DNA-dependent-DNA-polymerase (C) are found in cells for DNA replication and transcription. RNA-dependent-protein-synthetase (D) does not exist as named, as protein synthesis is carried out by ribosomes, not enzymes.