Which of the following enzymes are commonly found within viral capsids??? A.) DNA-dependent RNA polymerase B.)...

Which of the following enzymes are commonly found within viral capsids???

A.)		DNA-dependent RNA polymerase
B.)		RNA-dependent RNA polymerase
C.)		Reverse Transcriptase
D.)		Telomerase
E.)		a, b and c

Expert Solution

Viruses can be categorized into main three categories according to the nature of viral genome:

1. DNA virus

2. RNA virus

3. Reverse transcribing viruses

A virus needs to covert the genomic information into messenger RNA (mRNA) and translates it into viral proteins. Moreover, it also needs to replicate identical copies of its genome to encapsulate in the newly assembled viral capsid.

Therefore, according to the nature of the genomic material different virus-encoded polymerases are required

DNA virus replicates their genome by means of DNA-dependent DNA polymerases and transcribes mRNA using DNA dependent RNA polymerases.

RNA virus replicates and transcribe their genome using RNA dependent RNA polymerases

The reverse-transcribing virus can have either RNA or DNA as genomic material. Retrovirus have single-stranded RNA (ssRNA) that replicate via DNA intermediate which requires RNA dependent DNA polymerases also known as reverse transcriptase

Telomerase also known as terminal transferase is an enzyme which posses a specialized reverse transcriptase activity used in the elongation of telomeric region of eukaryotic chromosome not common in the virus.

Therefore option E is the correct choice

gladiator answered 2 years ago

The enzyme required for transcription is * RNA polymerase Restriction enzymes Splicesome DNA polymerase

Which error prone enzyme leads to increased mutation rates in RNA viruses? DNA dependent DNA polymerase...

Which error prone enzyme leads to increased mutation rates in RNA viruses? DNA dependent DNA polymerase RNA dependent RNA polymerase DNA dependent RNA polymerase RNA dependent DNA polymerase Antigenic drift permits viruses to evade which host defense? Innate Adaptive Interferon All of the above None of the above Antigenic drift can lead to vaccine resistance? Correct Incorrect Is antigenic drift a normal evolutionary process for viruses? Yes No

For each of the enzymes listed, write down the information requested: DNA-dependent DNA polymerase Type of...

For each of the enzymes listed, write down the information requested: DNA-dependent DNA polymerase Type of nucleic acid template: Type of nucleic acid produced: When is enzyme used? Eukaryotic, Prokaryotic and DNA virus DNA replication DNA-dependent RNA polymerase Type of nucleic acid template: Type of nucleic acid produced: When is enzyme used? Eukaryotic, Prokaryotic and DNA virus transcription RNA-dependent RNA polymerase Type of nucleic acid template: Type of nucleic acid produced: When is enzyme used? RNA virus replication Alternative name...

Compare and contrast the properties of DNA polymerase and RNA polymerase.

Compare and contrast the properties of DNA polymerase and RNA polymerase. Drag the appropriate items to their respective bins.

Which group (or groups) of viruses must package an RNA-dependent RNA Polymerase in the capsid of...

Which group (or groups) of viruses must package an RNA-dependent RNA Polymerase in the capsid of the virus along with the genome? Group I Group II Group III Group IV Group V Group VI Group VII

9.) During the process of DNA replication, both DNA polymerase and RNA polymerase are involved in...

9.) During the process of DNA replication, both DNA polymerase and RNA polymerase are involved in eventually creating the new daughter strand of DNA. T or F 10.) Replication begins at the origin of replication or ORI and transcription begins at the first codon for methionine. T or F 11.) The process of mapping, sequencing and analysis of proteins is called genomics. T or F 12.) The heavy chain constant domains of a given immunoglobulin molecule define its class. T...

What are the functions of the following enzymes in E. coli? DNA polymerase I __________________________________________________ DNA...

What are the functions of the following enzymes in E. coli? DNA polymerase I __________________________________________________ DNA polymerase II __________________________________________________ DNA polymerase III _________________________________________________ DNA polymerase IV _________________________________________________ DNA polymerase V _________________________________________________ Please indicate (if possible) which is the evolutionary history of these polymerases? Which of them you could be eliminate and preserve the function of the organism? (you must eliminate 2) What will be the consequences? Which environment might be suitable for the survival of this “mutant” that you created?

Describe the roles of the following enzymes in DNA replication: DNA polymerase, Helicase, Ligase, Primase.

6. Compare the structure and function of a typical DNA polymerase and a typical RNA polymerase.

6. Compare the structure and function of a typical DNA polymerase and a typical RNA polymerase.7. What are the post-transcriptional modifications that the pre-mRNA is subjected to in eukaryotes? Explain by giving the role(s) of each modification.8. Highlight the general characteristics of a mature mRNA in comparison with rRNA or tRNA

Compare the proofreading mechanisms of DNA and RNA polymerase. Specifically, which active site is required for...

Compare the proofreading mechanisms of DNA and RNA polymerase. Specifically, which active site is required for proofreading by each enzyme and what are the products of this activity?

Question