Q. Which of these is a reverse transcriptase?
1. DNA-dependent RNA polymerase
2. DNA-dependent DNA polymerase
3. RNA-dependent RNA polymerase
4. RNA-dependent DNA polymerase
Answer: 4 (RNA-dependent DNA polymerase)
Explanation:
An enzyme that uses DNA to synthesize RNA is called DNA-dependent RNA polymerase or transcriptase.
An enzyme that catalyzes the synthesis of a new DNA strand using a template DNA strand is called DNA-dependent DNA polymerase or DNA replicase.
An enzyme that catalyzes the replication of RNA from an RNA template is called RNA-dependent RNA polymerase or RNA replicase.
An enzyme that catalyzes the synthesis of a DNA strand using RNA as a template strand is called RNA-dependent DNA polymerase or reverse transcriptase.
Other important questions:
Q. The alpha-helix and beta-sheet are found at which level of protein organization?
Q. Which of the following tests is an agglutination test for the bacterium causing typhoid fever?
Q. What are alleles? And an example.
Q. What is one difference between DNA replication of bacteria and eukaryotes?
Q. Which of the following genotypes is homozygous recessive?
Q. If q = .4, what is the frequency of homozygous recessive individuals?
Q. A person who is homozygous recessive at a locus has which of the following?
Q. If cohesin was not produced or not functional what would be the effect on mitosis?
