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05/09/2020 4:30 pm
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Which statement is true?
(a) Adenine has 4 nitrogen atoms.
(b) Cytosine has 3 nitrogen atoms.
(c) Guanosine has 3 nitrogen atoms.
(d) Uracil has 5 nitrogen atoms
1 Answer
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05/09/2020 4:32 pm
(a) Adenine has 4 nitrogen atoms.
Explanation:
Nucleotides contain carbon, hydrogen, oxygen, nitrogen and phosphorous. Nucleotides are either purines or pyrimidines. Adenine and guanine are the two purines which are the 9-membered double ringed compound where each ring possesses four nitrogen atoms. Thymine, uracil, and cytosine are the pyrimidines which are single ringed nitrogenous compounds.