CBSE Biology Sample Papers for Class 12 – CBSE Biology Questions and Answers

CBSE Sample Papers for Class 12 Biology - 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 … Read more CBSE Biology Sample Papers for Class 12 – CBSE Biology Questions and Answers

CBSE Chemistry Sample Papers for Class 12 – CBSE Chemistry Questions and Answers

CBSE Sample Papers for Class 12 Chemistry - CBSE Chemistry Questions and Answers

CBSE Chemistry Sample Papers for Class 12 – CBSE Chemistry Questions and Answers     CBSE Chemistry Sample Paper   1. Write the dispersed phase and dispersion medium of butter. Answer Butter is a gel colloid. Thus, Dispersed phase is liquid Dispersion medium is solid   2. Define rate of reaction? Write two factors that … Read more CBSE Chemistry Sample Papers for Class 12 – CBSE Chemistry Questions and Answers

CBSE Physics Sample Papers for Class 12 – CBSE Physics Questions and Answers

CBSE Sample Papers for Class 12 Physics - CBSE Physics Questions and Answers

CBSE Physics Sample Papers for Class 12 – CBSE Physics Questions and Answers     CBSE Physics Sample Paper   1. What is the function of a ‘Repeater’ used in communication system? Answer A repeater is an amplifying device used to increase the range of the transmission in communication systems with the help of a … Read more CBSE Physics Sample Papers for Class 12 – CBSE Physics Questions and Answers