What is the length of the DNA double helix, if the total number of bp (base pair) is 6.6 x 10^9?(a) 2.2 m/bp(b) 2.5 m/bp(c) 2.2 m(d) 2.5 mThis question was addressed to me in a job interview.The query is from Packaging of DNA Helix topic in division Molecular Basis of Inheritance of Biology – Class 12

What is the length of the DNA double helix, if the total number of bp

1.	What is the length of the DNA double helix, if the total number of bp (base pair) is 6.6 x 10^9?(a) 2.2 m/bp(b) 2.5 m/bp(c) 2.2 m(d) 2.5 mThis question was addressed to me in a job interview.The query is from Packaging of DNA Helix topic in division Molecular Basis of Inheritance of Biology – Class 12
Answer» The correct answer is (c) 2.2 m Easiest explanation: The DISTANCE between 2 consecutive bp is 0.34 NM. The formula to calculate the length of the DNA DOUBLE helix: The length of the DNA double helix = The total NUMBER of bp x distance between two consecutive bp. As a result, we get 2.2 m as the length of the DNA double helix.

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