Question

What is the length of the human DNA containing $6.6\times {10}^{9}bp$?

• A. $22nm$
• B. $0.22nm$
• C. $2.2m$
• D. $22m$

Answer 1

The correct option is C $2.2m$

Usually, the length of a base pair in the DNA is 0.34 nm. The total number of base pairs in the given problem is (66*10^9), so the entire length of the DNA will be (66*0.34*10^9) nm = 2244*10^6 nm = 2.244 m.

So, the correct option is '2.2 m'.