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Q.
What is the length of human DNA containing $6.6\times10^9$ bp?
KVPYKVPY 2016
Solution:
The distance between 2 nucleotides/nitrogen bases is $0.34\times 10^{-9} m$ or $3.4 .\mathring{A}$
Therefore the length of human DNA containing $6.6\times 10^{9} bp$ would be
$= 0.34 \times 10^{-9} m\times 6.6\times 10^9 bp$
$= 2.244\, m$ or $2.2\, m$