If the haploid human DNA is 3.3 x 10^9 bp and the distance between con…

Question

If the haploid human DNA is 3.3 x 10^9 bp and the distance between consecutive base pairs is 0.34 nm, the approximate length of DNA in a typical diploid mammalian cell is:

Accepted Answer

A. {'text': '2.2 m', 'label': 'A'}

Diploid bp = 6.6 x 10^9. Length = 6.6 x 10^9 x 0.34 x 10^-9 m which equals approximately 2.2 m, vastly larger than a ~10^-6 m nucleus and demanding histone-based packaging.

Answer

{'text': '0.34 m', 'label': 'B'}

Answer

{'text': '1.1 m', 'label': 'C'}

Answer

{'text': '6.6 m', 'label': 'D'}