Question

Nucleotide arrangement in DNA can be seen by
(a) X-ray crystallography
(b) electron microscope
(c) ultracentrifuge
(d) light microscope

Answer 1

Answer:

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.

The answer is option A

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Answer 2

Answer:

a) is th correct answer