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Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYMolecular Basis of Inheritance1 Mark
MCQ
Nucleotide arrangement in DNA can be seen by.
  • A
    X-ray crystallography.
  • B
    Electron microscope.
  • C
    Ultracentrifuge.
  • D
    light microscope.
✓

Answer

  1. X-ray crystallography.

Explanation:

Nucleotide arrangement in DNA can be seen by X-ray Crystallography. X-ray crystallography is used to determine 3D structures of macromolecules like proteins, nucleotides, etc. The basic principle of this techniques is that the wavelength of x-rays depends on the distance between the atoms of the structures which makes it useful for determining their arrangement.

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