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Questions  

Which of the following compounds lack a phosphate group in their chemical structure?

a
Adenylic acid
b
Uridine
c
DNA
d
RNA

detailed solution

Correct option is B

Uridine is a nucleoside containing sugar and a nitrogen base. Adenylic acid is a nucleotide containing sugar, nitrogen base and phosphate molecule.Nucleic acids like DNA and RNA consist of nucleotides only.

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Choose the biomolecules with amino groups.

A. Glycine

B. Adenine

C. Serine

D. Lecithin


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