Molecular Basis of Inheritance Question 37

37. Reverse transcriptase is

[1994]

(a) RNA dependent RNA polymerase

(b) DNA dependent RNA polymerase

(c) DNA dependent DNA polymerase

(d) RNA dependent DNA polymerase

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Answer : d

Hints & Solution

(d) H. Temin and D. Baltimore (1970) discovered that tumor viruses contain RNA as genetic material and replicate by synthesizing complementary DNA. This process is called reverse transcription and it is carried by an RNA dependent DNA polymerase called as reverse transcriptase.