Microbes in Human WelfareHard
Question
Which statment is true?
Options
A.Adenine has 4 nitrogen atoms.
B.Cytosine has 3 nitrogen atoms.
C.Guanosine has 3 nitrogen atoms
D.Uracil has 5nitrogen atoms.
Solution
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-membereddouble ringed compound where each ring possesses four nitrogen atoms. Thymine, uracil, and cytosine are the pyrimidines which are singleringed mitrogenous compound.
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