1. The majority of DNA viral genomes are replicated using None of the following
ID: 148893 • Letter: 1
Question
1. The majority of DNA viral genomes are replicated using
None of the following answers
Host-encoded DNA-dependent DNA polymerase
Virally encoded RNA-dependent DNA polymerase
Virally encoded RNA-dependent RNA polymerase
Virally encoded DNA-dependent DNA polymerase
2.Which of the following does not play a role in virus entry?
fusion of viral and plasma membrane
microtubule-mediated transport
clathrin-mediated endocytosis
lysosomes
diffusion of virus particles into the cytoplasm
None of the following answers
Host-encoded DNA-dependent DNA polymerase
Virally encoded RNA-dependent DNA polymerase
Virally encoded RNA-dependent RNA polymerase
Virally encoded DNA-dependent DNA polymerase
Explanation / Answer
1. DNA viruses may replicate their genome using host or viral DNA-dependent DNA polymerase.
Few viruses like Parvovirus and Papovaviral utilize host cellular DNA-dependent DNA polymerase.
Most viruses use their own or virally encoded DNA-dependent DNA polymerase.
Answer: Virally encoded DNA-dependent DNA polymerase.
2. Viral particle either binds to cell surface receptors, or fuse to cell membrane or endosomes. Virus cannot directly enter through membrane into cytoplasm by diffusion.
Answer: diffusion of virus particles into the cytoplasm.
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