Question

Reverse transcriptase is:
A. RNA dependent RNA polymerase
B. DNA dependent RNA polymerase
C. DNA dependent DNA polymerase
D. RNA dependent DNA polymerase

Answer 1

Hint: A reverse transcriptase (RT) is an enzyme that is used in the process of reverse transcription. It is used to synthesis DNA (cDNA) from RNA. Reverse transcriptases are utilized by certain infections, for example, HIV and the hepatitis B infection to duplicate their genomes, by retrotransposon versatile hereditary components to multiply inside the host genome, and by eukaryotic cells to expand the telomeres at the finishes of their direct chromosomes.

Complete answer:
The enzyme reverse transcriptase is available in certain infections that have hereditary material as the RNA. The enzyme is needed for the reverse record of viral RNA to DNA which can be embedded into the host DNA. The enzyme is RNA-dependent DNA Polymerase. The RNA section is considered as the format and the cDNA is incorporated. The second strand of the cDNA is blended to make the twofold abandoned structure of viral DNA.
Hence, the right answer is choice B.

Note: The enzymes are encoded and utilized by infections that utilization reverse record as a stage during the time spent replication. Reverse-interpreting RNA infections, for example, retroviruses, utilize the enzyme to reverse-translate their RNA genomes into DNA, which is then incorporated into the host genome and reproduced alongside it. Reverse-translating DNA infections, for example, the hepadnaviruses, can permit RNA to fill in as a layout in amassing and making DNA strands. HIV infects people with the utilization of this enzyme. Without reverse transcriptase, the viral genome would not have the option to enter into the host cell, bringing about the inability to reproduce.