NEET 2020 Biology Official Examination

National Testing Agency (NTA) • Computer Based Test (CBT)
01:30:00
QUESTION 1/ 90
Unit VII: Genetics and Evolution
Easy
+4.0/-1.0
DNA length and structure
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 bp, then the length of the DNA is approximately:
Select one correct choice:Click to select or change option
A
(1)2.5 meters
B
(2)2.2 meters
C
(3)2.7 meters
D
(4)2.0 meters
Question 1 of 90