What does reverse transcriptase use to form dna

-RNA molecule.

Explanation:

Reverse transcriptase or RT can be defined as an enzyme that synthesizes cDNA (complementary DNA) molecules by using RNA molecule as template. This process is known as reverse transcription.

Reverse transcriptase enzyme is found in many RNA viruses, prokaryotes and eukaryotes. Telomerase in an example of reverse transcriptase, which is found in eukaryotes and replicates ends of linear chromosomes.

Thus, the correct answer is 'RNA.'

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ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'