Which of the following statements is correct?(a) Adenine is a pyrimidine(b) DNA is made of amino acids(c) Nucleosides do not contain phosphorous(d) RNA contains thymineI had been asked this question in a job interview.This intriguing question originated from Biomolecules topic in division Biomolecules of Chemistry – Class 12

Which of the following statements is correct?(a) Adenine is a pyrimidi

1.	Which of the following statements is correct?(a) Adenine is a pyrimidine(b) DNA is made of amino acids(c) Nucleosides do not contain phosphorous(d) RNA contains thymineI had been asked this question in a job interview.This intriguing question originated from Biomolecules topic in division Biomolecules of Chemistry – Class 12
Answer» The correct option is (c) Nucleosides do not contain phosphorous For EXPLANATION: Adenine is a substituted purine as it has two fused rings. DNA is MADE up of NUCLEOTIDES. RNA does not contain thymine, instead it has uracil. Nucleosides have a BASE attached to a pentose sugar. Since both the sugar and base do not contain phosphorous, nucleosides do not have it. On the other hand, nucleotides contain phosphorous in the form of phosphoric ACID.

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