2
Question
RNA retrovirus has a special enzyme that
RNA retrovirus has a special enzyme that
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Solution
The correct option is A Transcribes viral RNA to DNA
RNA retroviruses have reverse transcriptase enzyme which synthesizes DNA using RNA template, the process is called reverse transcription because the process goes in just opposite direction to normal transcription. A DNA strand is always first transcribed into RNA which is then translated into protein; DNA is never translated into protein which makes option B wrong. DNA polymerization is characteristic of DNA polymerases which are found in all organisms and are not unique to retroviruses; option C is wrong. DNA disintegration is characteristic of nucleases which can cut the DNA randomly or at specific sites. Nucleases are universal in occurrence; option D is wrong. The correct option is A.
RNA retroviruses have reverse transcriptase enzyme which synthesizes DNA using RNA template, the process is called reverse transcription because the process goes in just opposite direction to normal transcription. A DNA strand is always first transcribed into RNA which is then translated into protein; DNA is never translated into protein which makes option B wrong. DNA polymerization is characteristic of DNA polymerases which are found in all organisms and are not unique to retroviruses; option C is wrong. DNA disintegration is characteristic of nucleases which can cut the DNA randomly or at specific sites. Nucleases are universal in occurrence; option D is wrong. The correct option is A.
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