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Structure Of The Cell - Questions and Answers

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271. Number of base pairs in each turn of B-DNA helix is
A. 10
B. 11
C. 12
D. Variable
Explanation:
272. Haemoglobin is
A. Monomeric protein
B. Oligomeric protein
C. Chromoprotein
D. Both B and C
Explanation:
273. In ∝-helix secondary structure, hydrogen bonds lie between imide group of one amino acid and carbonyl group of
A. 2nd amino acid
B. 3rd amino acid
C. Fourth amino acid
D. Fifth amino acid
Explanation:
274. Initiation codon of mRNA occurs
A. Midway
B. At 3’ end
C. At 5’ end
D. Submetacentric region
Explanation:
275. Protomers are
A. Primitive proteins
B. Protein subunits
C. Protein aggregates
D. None of the above
Explanation:
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