Reverse-transcriptase PCR ____
a. uses Taq polymerase to produce cDNA copies of RNA transcripts
b. uses RNA polymerase to amplify cDNA copies of RNA transcripts
c. uses RNA polymerase to produce mRNA copies of a gene
d. amplifies cDNA copies of RNA transcripts
e. uses reverse transcriptase to produce mRNA copies of a gene
ANSWER: d
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