Q. $E.\ coil$ about to replicate was placed in a medium containing radioactive thymidine for five minutes. Then it was made to replicate in a normal medium. Which of the following observation will be correct?
A) Both the strands of DNA will be radioactive
B) One strand radioactive
C) Each half strand radioactive
D) None is radioactive
Explanation
The correct answer is Option B: One strand radioactive.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.