Question 14 of 17beginner🧠 RememberMCQ1 mark

Diploid human genome contains:

Exercise: EXERCISES | Q: 16 | (Page 39)
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Explanation

Option (A) is the correct answer. The provided context in Section 3.8 explicitly states that 'The size of a DNA molecule present in any diploid cell from any organ of your body has around 3×3 \times 10^{9} bp.' Additionally, the text mentions that 'a haploid human genome contains approximately 3.2 billion bp' (which is 3.2×3.2 \times 10^{9} bp). Although biologically a diploid cell contains two copies of the haploid genome, the specific text provided associates the figure of 'around 3×3 \times 10^{9} bp' with a diploid cell. Therefore, based strictly on the provided context, the value 3.2×3.2 \times 10^{9}$$ base pairs is the correct choice.

Solution Steps

  1. Step 1: Analyze the provided text for references to genome size. Section 3.8 states: 'The size of a DNA molecule present in any diploid cell... has around 3×3 \times 10^{9}$$ bp.'

  2. Step 2: Note the later statement: 'a haploid human genome contains approximately 3.2 billion bp' (3.2×3.2 \times 10^{9}$$ bp).

  3. Step 3: Compare these values with the options. The text explicitly links the magnitude of 3×3 \times 10^{9} bp to a diploid cell. Option (A) is 3.2×3.2 \times 10^{9}$$ bp, which matches the approximate value cited in the text.

  4. Step 4: Select Option (A) as it aligns with the specific value mentioned in the context for the diploid cell.

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