Question

The enzyme that uses RNA as a template to produce a DNA copy is called:

a) DNA Ligase
b) DNA Polymerase
c) RNA Polymerase
d) Helicase

Answer 1

The correct answer is none of the above, as the enzyme that uses RNA as a template to produce a DNA copy is called reverse transcriptase, which is not listed among the choices provided.

Step-by-step explanation:

The enzyme that uses RNA as a template to produce a DNA copy is called reverse transcriptase. This enzyme is not listed in the options provided, as it specifically refers to the process of reverse transcription, where RNA is converted back into DNA, which is different from the normal flow of genetic information. None of the options given (DNA ligase, DNA polymerase, RNA polymerase, and helicase) directly perform this function. DNA polymerase I does have a role in replacing RNA primers with DNA, but the process of synthesizing DNA from an RNA template is performed by reverse transcriptase.

DNA polymerase is mainly known for synthesizing DNA strands by adding nucleotides to a growing chain during DNA replication, using a DNA template. DNA ligase is implicated in joining DNA fragments together, such as Okazaki fragments on the lagging strand. Helicase unwinds the DNA helix, and RNA polymerase is responsible for creating RNA molecules in a process called transcription, using DNA as a template.