reverse transcriptases

Enzymes found in retroviruses that can synthesize complementary single-strands of DNA from an mRNAsequence as template They are used in genetic engineering to produce specific cDNA molecules from purified preparations of mRNA.
Source:
PAC, 1992, 64, 143 (Glossary for chemists of terms used in biotechnology (IUPAC Recommendations 1992)) on page 165