In retroviruses, RNA dependent DNA polymerase synthesizes

DNA

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RNA

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RNA-DNA

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None of the above

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Solution

The correct option is A DNA
RNA retroviruses have reverse transcriptase enzyme that synthesizes a DNA copy (cDNA) of viral RNA. The cDNA is enzymatically converted into a DNA-DNA double helix and is integrated into the host chromosome. After integration, cDNA is transcribed into copies of the viral RNA, which are both translated and packaged into new viral particles that are released from the cell to repeat the infection process.

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Similar questions

Q. How many of the following statements are correct ?

A. DNA dependent DNA polymerase requires DNA primer for initiating replication but DNA dependent RNA polymerase does not require any primer for transcription.

B. DNA dependent DNA polymerase requires RNA primer for initiating replication but DNA dependent RNA polymerase does not require any primer for transcription.

C. During replication, unwinding of DNA double helix forms a fork-like structure called replication fork.

D. During transcription, unwinding of the DNA double helix by DNA dependent RNA polymerase forms a transcription bubble.

E. During transcription, unwinding of DNA double helix by DNA dependent RNA polymerase forms a transcription fork.

Q. The enzyme DNA dependent RNA polymerase and DNA dependent DNA polymerase catalyse the polymerisation reaction in ___(i)_____ and ___(ii)_____ direction, respectively.

Q. In transcription, against which strand of DNA does the DNA dependent RNA polymerase catalyse the process?

Q. DNA dependent RNA polymerase catalyzes transcription on the strand of the DNA which is called the

During replication, DNA dependent RNA polymerase works in direction _{_________} and from Okazaki, the polarity of other parental strand is _{________}.

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