If the distance between two consecutive base pairs is 0.34 Nm and the total number of base pairs of a DNA double helix in a typical mammalian cell Is 6.6 × 109 Dp then the length of the DNA is approximately?
If the distance between two consecutive base pairs is 0.34 Nm and the total number of base pairs of a DNA double helix in a typical mammalian cell Is 6.6 × 109 Dp then the length of the DNA is approximately?
The correct option is A 2.2
The correct option is A:
Explanation of the correct option:
Given:
Distance between two consecutive base pairs = 0.34N-m = 0.34 × 10-9m
Total number of base pairs of a DNA double helix = 6.6 × 109 Dp
Length of the DNA = Distance between two consecutive base pairs × Total number of base pairs of a DNA double helix
= 0.34 × 10-9m × 6.6 × 109 Dp = 2.2m
Explanation of the incorrect option:
Option B:
On calculation length of the DNA is approximately 2.2m.
Option C:
On calculation length of the DNA is approximately 2.2m.
Option D:
On calculation length of the DNA is approximately 2.2m.
Final answer: The length of the DNA is approximately 2.2m
2.2
The correct option is A:
Explanation of the correct option:
Given:
Distance between two consecutive base pairs = 0.34N-m = 0.34 × 10-9m
Total number of base pairs of a DNA double helix = 6.6 × 109 Dp
Length of the DNA = Distance between two consecutive base pairs × Total number of base pairs of a DNA double helix
= 0.34 × 10-9m × 6.6 × 109 Dp = 2.2m
Explanation of the incorrect option:
Option B:
On calculation length of the DNA is approximately 2.2m.
Option C:
On calculation length of the DNA is approximately 2.2m.
Option D:
On calculation length of the DNA is approximately 2.2m.
Final answer: The length of the DNA is approximately 2.2m
