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Question
A DNA contain 30,000 base pairs. How many nucleotides would be present in it?
A DNA contain 30,000 base pairs. How many nucleotides would be present in it?
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Solution
The correct option is D 60,000
In DNA molecule, there are two complimentary stands wound as a double helix. Each strand is composed of repeating units of nucleotides (composed of a deoxyribose sugar, nitrogenous base and a phosphate group) joined by phosphodiester bonds.
The nitrogenous base of each nucelotide pairs up (via hydrogen bonds) with the complementary (A with T and G with C) nitrogenous base of the nucleotide on the opposite strand. Thus each base pair involves two nucleotides. So 30,000 base pairs will have 60,000 nucleotides.
In DNA molecule, there are two complimentary stands wound as a double helix. Each strand is composed of repeating units of nucleotides (composed of a deoxyribose sugar, nitrogenous base and a phosphate group) joined by phosphodiester bonds.
The nitrogenous base of each nucelotide pairs up (via hydrogen bonds) with the complementary (A with T and G with C) nitrogenous base of the nucleotide on the opposite strand. Thus each base pair involves two nucleotides. So 30,000 base pairs will have 60,000 nucleotides.
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