CBSE Biology Sample Papers for Class 12 – CBSE Biology Questions and Answers
CBSE Biology Sample Papers for Class 12 – CBSE Biology Questions and Answers CBSE Biology Sample Paper 1. What is a cistron? Answer Cistron is that segment of DNA which specifies synthesis of a polypeptide. 2. Why do children cured by enzyme-replacement therapy for adenosine deaminase deficiency need periodic treatment? Answer […] More