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Q)

# if the length of DNA is 1.5 mm, what is the size of the genome of the organism?

( a ) $2\times 10^5$ bp
( b ) $2\times10^6$ bp
( c ) $2 \times10^{-6}$ bp
( d ) $2\times 10^4$ bp

Total number of bp $\times$ distance between two consecutive base pairs=length of DNA molecule =$\frac{1.5 \times 10^{-3}}{0.34 \times 10^{-9}}=2 \times 10^6\;bp$