The enzyme reverse transcriptase, essentially found in all retroviruses, is
Correct answer: D. RNA-dependent DNA polymerase
- A. DNA-dependent RNA polymerase
- B. DNA-dependent DNA polymerase
- C. RNA-dependent RNA polymerase
- D. RNA-dependent DNA polymerase
Explanation
Reverse transcriptase is an enzyme found in all retroviruses that enables them to replicate by converting their RNA genome into complementary DNA (cDNA). This DNA is then integrated into the host cell's genome, allowing the virus to use the cell's machinery for producing viral proteins and new virus particles. By reversing the normal flow of genetic information (RNA → DNA), reverse transcriptase is essential for viral survival and has also become an important tool in molecular biology research.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Biodiversity and Variety of Life
Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
Practise Biodiversity and Variety of Life
3,130 free Biodiversity and Variety of Life MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Biodiversity and Variety of Life questions
Which of the following types of virus is illustrated in the diagram?
Which of the following statements is correct?
Most RNA viruses carry a gene for an enzyme that uses viral RNA as a template in the synthesis of more viral RNA. This enzyme is
Bacteriophages kill:
Which of the following are intracellular obligate parasites?
All enzymes are present in HIV except: