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Grade 12Zoology

if a strand of DNA has 0.1mm length, what will be the ratio of length to diameter
  1. 500
  2. 50
  3. 50,000
  4. 5000

Profile image of garima nirmal
11 Years agoGrade 12
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1 Answer

Profile image of Gaurav
11 Years ago
Hello Student
Correct Answer is 3. 50,000
0.1mm = 105nm
as we know diameter of DNA is = 2nm
Axial Ratio =
105
2 x 109
10-5= 50000nm