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Structure Of The Cell - Questions and Answers

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256. DNA differs from RNA in
A. Nature of sugar alone
B. Nature of purines alone
C. Nature of sugar and pyrimidines
D. All the above
Explanation:
257. Which part of protoplast shows streaming or cyclosis
A. Ectoplasm
B. Endoplasm
C. Endoplasmic matrix
D. Nucleoplasm
Explanation:
258. Z-DNA is characterized by
A. Left handed helix
B. Right handed helix
C. Bending of nitrogen bases to helix axis at an angle other than perpendicular
D. Both A and B
Explanation:
259. Final structure in fibrous proteins is
A. Secondary structure
B. Tertiary structure
C. Quaternary structure
D. Primary structure
Explanation:
260. The most abundant molecule of protoplast is
A. Proteins
B. Lipids
C. Carbohydrates
D. Nucleic acids
Explanation:
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