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- Question
Different DNA polymerases play distinct roles in DNA replication and repair in both prokaryotic and eukaryotic cells. All known DNA polymerases synthesize DNA only in the __________ by the addition of dNTPs to a performed primer strand of DNA.
Options- A. positive direction
- B. 3' to 5' direction
- C. 5' to 3' direction
- D. negative direction
- Correct Answer
- 5' to 3' direction
- 1. Which of the following is a nonstandard amino acid?
Options- A. Cysteine
- B. Isoleucine
- C. Hydroxyproline
- D. Histidine Discuss
- 2. The ultimate source of energy that sustains living systems is
Options- A. glucose
- B. oxygen
- C. sunlight
- D. carbon dioxide Discuss
- 3. Ribosomes select the correct tRNAs
Options- A. then bind to the appropriate mRNA
- B. solely on the basis of their anticodons
- C. depending on their abundance in the cytosol
- D. with the least abundant anticodons Discuss
- 4. Models of end-linked Osaka VI Fibrinogen dimers, a bilayer dimer is linked at
Options- A. both ends by one disulfide bond
- B. either end via two disulfide bonds
- C. either end via a single disulfide bond
- D. both ends by two disulfide bonds Discuss
- 5. Which of the following amino acid is known as half-cystine residue?
Options- A. Cysteine
- B. Isoleucine
- C. Valine
- D. Histidine Discuss
- 6. The nucleons of eukaryotic cell has
Options- A. RNA polymerase I
- B. RNA polymerase II
- C. RNA polymerase III
- D. all of these Discuss
- 7. Two major products of pentose phosphate pathway are
Options- A. nicotinamide adenine dinucleotide and ribose 5-phosphate
- B. flavine adenine dinuclueotide and glucose 5-phosphate
- C. FAD and CoA
- D. NADPH and NAD Discuss
- 8. The type II restriction endonucleases, bind to DNA sites
Options- A. using H-bonds for specificity
- B. that are usually palindromic
- C. using non-sequence-dependent backbone interactions
- D. all of the above Discuss
- 9. The glycosidic bond
Options- A. in maltose is not hydrolyzed in lactose intolerant humans
- B. in sucrose is hydrolyzed by bees
- C. joins glucose and fructose to form sucrose
- D. both (b) and (c) Discuss
- 10. The most common liquid volumes in molecular biology are measured in
Options- A. ml
- B. ?l
- C. nl
- D. 1 Discuss
More questions
Correct Answer: Hydroxyproline
Correct Answer: sunlight
Correct Answer: solely on the basis of their anticodons
Correct Answer: both ends by two disulfide bonds
Correct Answer: Cysteine
Correct Answer: all of these
Correct Answer: nicotinamide adenine dinucleotide and ribose 5-phosphate
Correct Answer: all of the above
Correct Answer: both (b) and (c)
Correct Answer: ?l
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