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Question

Which one of the following makes use of RNA template to synthesise DNA?

A
DNA ligase
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B
DNA dependent RNA polymerase
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C
Reverse transcriptase
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D
DNA dependent DNA polymerase
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Solution

The correct option is C Reverse transcriptase
Synthesis of DNA from RNA is called reverse transcription. It occurs in retroviruses. The enzyme responsible for the synthesis of DNA from RNA is reverse transcriptase.

DNA dependent RNA polymerase forms RNA from DNA, i.e., a DNA strand acts as the template to synthesise a new single stranded RNA.

DNA dependent DNA polymerase uses the DNA strand as a template to synthesise new DNA in the process of DNA replication.

DNA ligase catalyses the joining of the discontinuous strands formed during DNA replication.


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