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Positions of N atoms in the purine and pyrimidine rings

This type of question, asked 2 times: 20 Apr 2025 S2, 26 Apr 2025 S1. All 2 questions below, oldest first.

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  1. Question 1

    20 Apr 2025 S2

    81
    What are the positions of ' N ' atoms present in pyrimidine ring of nucleic acids?

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  2. Question 2

    26 Apr 2025 S1

    68
    What are the positions of ' NN ' atoms present in purine ring of nucleic acids?

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