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Genetic Material

The histone o...

Question

The histone occupies the major groove of a DNA at an angle of

A

60^{\circ}

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B

90^{\circ}

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C

45^{\circ}

to helix axis

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D

30^{\circ}

to helix axis

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Solution

The correct option is D $30^{\circ}$ to helix axis
DNA is acidic. For its compaction, it requires basic (histone) proteins. The histone proteins, are positively charged and occupy the major grooves of DNA at an angle of 30° to helix axis.
Therefore, the correct answer is option D.

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