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5.Molecular Basis of Inheritance
medium
A given double stranded $DNA$ molecule is $1,00,000$ base pairs long. The length of this $DNA$ molecule will be
A
$10,000 nm$
B
$3.4 \times {10^4}$$nm$
C
${10^4}$ $nm$
D
$2,00, 000 nm$
Solution
(b)The length of this $DNA$ molecule will be $3.4 \times {10^4}nm$ because one complete spiral of the helix is $3.4nm$ $(34A°)$ long and has $10$ base pairs.
Standard 12
Biology
