At which position in the ribose is an additional –OH present [with respect to Deoxyribose]?
1. | 1’ | 2. | 2’ |
3. | 3’ | 4. | 5’ |
Watson and Crick based their model of DNA on X-ray diffraction data produced by:
1. | Hershey and Chase | 2. | Marie Curie and Pierre Curie |
3. | Franklin and Wilkins | 4. | Meselson and Stahl |
In a transcription unit, with respect to structural genes, the promoter is located:
1. | Upstream and 5’ | 2. | Upstream and 3’ |
3. | Downstream and 5’ | 3. | Downstream and 3’ |
Which of the following codons has a dual role in the genetic code?
1. | AUG | 2. | GUG |
3. | CUG | 4. | UUG |
DNA-dependent RNA polymerase catalyzes polymerization in:
1. | Only in 3’ – 5’ direction |
2. | Only in 5’ – 3’ direction |
3. | In both directions |
4. | In neither directions |
Frederick Griffith discovered:
1. | DNA is the genetic material |
2. | RNA can be the genetic material |
3. | Streptococcus has two strains |
4. | Bacterial transformation |
In Avery, Macleod, and McCarty's experiment, the transformation of bacteria was inhibited by:
1. | Proteases | 2. | RNase |
3. | DNAs | 4. | None of these |
If each strand of a dsDNA acts as a template for a new strand, the two daughter DNAs will be:
1. | Complementary to each other |
2. | Identical to the parental DNA |
3. | Similar to each other |
4. | Complementary to the parental DNA |
Which of the following is a pyrimidine base found in DNA?
1. | Adenine | 2. | Guanine |
3. | Uracil | 4. | Cytosine |
Which of the following is also called soluble RNA?
1. | tRNA | 2. | rRNA |
3. | mRNA | 4. | siRNA |