Q.
Assertion: DNA requires RNA for synthesizing
Reason: DNA proteins have evolved from RNA.
A) Both assertion and reason are true and reason is the correct explanation of assertion.
B) Both assertion and reason are true but reason is not correct explanation of assertion.
C) Assertion is true, but reason is false.
D) Both assertion and reason are false.
Explanation
DNA depends upon RNA to synthesize its protein while RNA can perform this process directly. RNA has evolved earlier than DNA but it was unstable. Therefore, DNA has evolved from RNA with chemical modifications.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.