Which one of the following makes use of an RNA template to synthesize DNA?
Correct answer: C. Reverse transcriptase
- A. DNA polymerase
- B. RNA polymerase
- C. Reverse transcriptase
- D. DNA dependant RNA polymerase
Explanation
The answer to this question is reverse transcriptase. Reverse transcriptase is an enzyme that uses an RNA template to synthesise DNA. It is found in retroviruses, such as HIV, and is used to create a DNA copy of the viral RNA genome. Reverse transcriptase is also used in some molecular biology techniques, such as RT-PCR, to create cDNA from mRNA.The other options are incorrect:DNA polymerase synthesises DNA from a DNA template.RNA polymerase synthesises RNA from a DNA template.DNA-dependent RNA polymerase synthesises RNA from a DNA template.
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About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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