need help with part B!
length of chromosome in basepairs=4 10^6 basepairs.
length of 1000 bp=0.34 mm
so length of 1 bp= 0.34/1000 mm
length of 4 10^6 basepairs.=4 10^6 (0.34/1000)= 1360 mm
length of chromosomes in 109 cells= length of chromosome in one cell 109=1360 10^9=1.3610^12 mm
1 mm=10^-3 m
so 1.3610^12 mm=1.36 10^1210^-3=1.3610^9 m.
1 meter = 6.2 x 10-4mile
so
1.3610^9 m=1.3610^9 6.210^-4= 843200 miles
so the answer is 843200 miles
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