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Question
A DNA molecule contains 10,000 base pairs, then the length of this DNA molecule is
A DNA molecule contains 10,000 base pairs, then the length of this DNA molecule is
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Solution
The correct option is B 0.34×10−5 meter
There are 10 base pairs per turn of the helical DNA and so the helix rises by 34 ˚A per turn.
As 10 base pairs = 34 ˚A
So, 10,000 base pairs will be = (34 x 10000)/10 (Angstroms).
Since 1 Angstrom is 10−10 m.
So, the length of this DNA will be 0.34 x 10−5 m.
There are 10 base pairs per turn of the helical DNA and so the helix rises by 34 ˚A per turn.
As 10 base pairs = 34 ˚A
So, 10,000 base pairs will be = (34 x 10000)/10 (Angstroms).
Since 1 Angstrom is 10−10 m.
So, the length of this DNA will be 0.34 x 10−5 m.
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