NEET Chemistry Nucleic Acids MCQ Question
Which of the following statements about nucleic acids is correct?
DNA contains thymine, while RNA contains uracil as one of its bases.
Nucleotides are linked together by ionic bonds between their phosphate groups.
A nucleoside is formed when a phosphate group is attached to a sugar.
All nucleic acids are composed of the same four nitrogenous bases.
Correct Answer
Detailed Explanation
DNA contains four bases: adenine, guanine, cytosine, and thymine, while RNA has uracil instead of thymine. This distinction is crucial in understanding the differences between DNA and RNA as mentioned in the NCERT context.
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