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Question
If DNA has 45,000 base pairs, how many complete turns will the DNA molecule take?
If DNA has 45,000 base pairs, how many complete turns will the DNA molecule take?
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Solution
The correct option is A 4500
DNA is made up of two polynucleotide chains which are coiled in a right-handed fashion.
The pitch of the helix is 3.4 nm and there are approximately 10 base pairs in each turn.
Since, 10 base pairs = 1 complete turn,
45,000 base pairs = 45,000/10 = 4500 complete turns.
DNA is made up of two polynucleotide chains which are coiled in a right-handed fashion.
The pitch of the helix is 3.4 nm and there are approximately 10 base pairs in each turn.
Since, 10 base pairs = 1 complete turn,
45,000 base pairs = 45,000/10 = 4500 complete turns.
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