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Home ‣ Biochemistry ‣ Nucleic Acids See What Others Are Saying!
- Question
A purine with an amine (NH2) group on the 6th carbon is
Options- A. adenine
- B. cytosine
- C. thymine
- D. guanine
- Correct Answer
- adenine
- 1. Vitamin-D deficiency can cause
Options- A. rickets
- B. pernicious anemia
- C. cataract
- D. beri-beri Discuss
- 2. Transaminase enzymes are present in
Options- A. liver
- B. pancreas
- C. intestine
- D. none of these Discuss
- 3. Beta pleated sheets are examples of protein's
Options- A. primary structure
- B. secondary structure
- C. tertiary structure
- D. quaternary structure Discuss
- 4. Combined cellular and humoral immune deficiencies result from lack of all of the following except
Options- A. a thymus
- B. class II MHC
- C. HIV infection of CD4+ T cells
- D. transporter of antigen peptides (TAP) Discuss
- 5. A best described ketogenic amino acid is
Options- A. lysine
- B. tryptophan
- C. valine
- D. none of these Discuss
- 6. Which is the largest among the followings?
Options- A. Nucleotide
- B. Nitrogenous base
- C. Phosphate
- D. Carbon Discuss
- 7. A cyclic electron transport process is the characteristic of
Options- A. photosynthesis
- B. methane oxidation
- C. sulfide oxidation
- D. methane production Discuss
- 8. Which of the following RNAs bind to an amino acid?
Options- A. mRNA
- B. tRNA
- C. rRNA
- D. hnRNA Discuss
- 9. A compound that is capable of forming hydrogen bonds with water
Options- A. is probably held together by noncovalent bonds
- B. contains at least some polar covalent bonds
- C. should act as a good buffer for acids and bases
- D. does not dissolve well in water Discuss
- 10. Enzyme, responsible for proofreading base pairing is
Options- A. DNA polymerase
- B. Telomerase
- C. Primase
- D. DNA ligase Discuss
More questions
Correct Answer: rickets
Correct Answer: liver
Correct Answer: secondary structure
Correct Answer: transporter of antigen peptides (TAP)
Correct Answer: lysine
Correct Answer: Nucleotide
Correct Answer: photosynthesis
Correct Answer: tRNA
Correct Answer: contains at least some polar covalent bonds
Correct Answer: DNA polymerase
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