MCQ practice · SSC Biology Board questions · Chapter 2: Cells and Tissues of Organisms
The chromosome of a eukaryotic cell has:
- i. RNA
- ii. DNA
- iii. histone protein
Think it through first, then pick an option.
- a i and ii
- b i and iii
- c ii and iii
- d i, ii and iii
Answer and explanation
Correct answer: c ii and iii
ii and iii are true: the chromosome of a eukaryotic cell is made of DNA and histone protein.
Why the other options are wrong
- a i and ii: i is wrong: RNA is found in the nucleolus, not in the chromosome.
- b i and iii: i is wrong, so this pair is not right. The right answer here is: ii and iii.
- d i, ii and iii: i is wrong, so all three cannot be true together.
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