Question

Assertion: Purine bases present in $DNA$ are adenine and guanine.
Reason : The base thymine is present in $RNA$ while base uracil is present in $DNA$.

• A. If both assertion and reason are true and reason is the correct explanation of assertion.
• B. If both assertion and reason are true but reason is not the correct explanation of assertion.
• C. If assertion is true but reason is false.
• D. If both assertion and reason are false.

Answer 1

Answer: (C)

Purine bases present in DNA are adenine and guanine, as they are derived from purine rings. The base uracil is present in RNA whereas the base thymine is present in DNA.