Question

What enzyme is used in reverse transcription?

Answer 1

The process of copying a segment of DNA into RNA is known as transcription. Messenger RNA is made up of DNA segments that have been transcribed into RNA molecules that can encode proteins. Non-coding RNAs are made from segments of DNA that are not copied into RNA molecules.

Complete answer:
A reverse transcriptase (RT) is an enzyme that converts an RNA template into complementary DNA (cDNA), a process known as reverse transcription. Certain viruses, such as HIV and hepatitis B, use reverse transcriptases to replicate their genomes, retrotransposon mobile genetic elements use reverse transcriptases to proliferate within the host genome, and eukaryotic cells use reverse transcriptases to extend the telomeres at the ends of their linear chromosomes
Contrary to popular belief, the process does not violate the classical central dogma's description of genetic information flows, because information transfers from RNA to DNA are explicitly allowed.
Biochemical reactions are catalyzed by enzymes, which are biological polymers. The majority of enzymes are proteins with catalytic abilities that are required to carry out various processes. A set of enzymes that are required for life carry out metabolic processes and other chemical reactions in the cell.
The reverse transcription reaction is catalyzed by reverse transcriptase. It's a DNA polymerase that's RNA-dependent. It converts single-stranded RNA to DNA. Reverse transcription can be found in retroviruses and is also used in disease research and diagnosis.

Thus, the enzyme used in reverse transcription is reverse transcriptase.

Note:
Viruses that use reverse transcription as a step in the replication process encode the enzymes and use them. Retroviruses and other reverse-transcription RNA viruses use the enzyme to reverse-transcribe their RNA genomes into DNA, which is then integrated into the host genome and replicated alongside it. DNA viruses that reverse-transcribed DNA, such as the hepadnaviruses, can use RNA as a messenger.