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Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYMolecular Basis of Inheritance1 Mark
MCQ
The net electric charge on DNA and histones is:
    • A
      Both positive.
    • B
      Both negative.
    • C
      Negative and positive, respectively.
    • D
      Zero.
    ✓

    Answer

    1. Negative and positive, respectively.

    The negatively charged DNA is wrapped around positively charged histone; making a structure called nucleosome. This explains the efficient packing of DNA in such a small space inside the nucleus.

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