1. 6.6×10⁶ bp 2. 3.3×10⁹ bp 3. 6.6×10⁹ bp 4. 3.3×10⁶ bp

Answer: 2. 3.3×10⁹ bp Key idea: Distance between two base pairs is 0.34\ nm = 0.34×10⁻⁹ m. N = dfrac1.10.34×10⁻⁹ ≈ 3.2×10⁹ ≈ 3.3×10⁹ bp, which is about the size of the human haploid genome.

Topic: DNA as genetic material, DNA and RNA structure, DNA packaging· Genetics and Evolution

If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs ?

1. \(6.6\times10^6\) bp

2. \(3.3\times10^9\) bp

3. \(6.6\times10^9\) bp

4. \(3.3\times10^6\) bp

Doubtly Asked 30 Oct 2026 NEET UG 2022 Practice test neet Save WhatsApp Report

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Answer: 2. \(3.3\times10^9\) bp

Key idea: Distance between two base pairs is \(0.34\ \text{nm} = 0.34\times10^{-9}\) m.

\(N = \dfrac{1.1}{0.34\times10^{-9}} \approx 3.2\times10^{9} \approx 3.3\times10^{9}\) bp, which is about the size of the human haploid genome.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs ?

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