If the distance between two consecutive base pairs is 0 . 34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is 6 . 6 × 10 9 bp bp, then the length of the DNA i

Question

If the distance between two consecutive base pairs is 0 . 34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is 6 . 6 × 10 9 bp bp, then the length of the DNA is approximatelyNEET 2020 (Phase 1)

TestHub · Accepted Answer

Given the distance between two consecutive base pairs is $0.34 nm = 0.34 \times 10^{- 9} m$ .

A total number of bases $= 6.6 \times 10^{9} bp$ .

Length of DNA $=$ Total no. of $bp \times$ Distance between two consecutive $bp$

$= 6.6 \times 10^{9} \times 0.34 \times 10^{- 9}$

$= 2.24 m$

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