biology

Multiple Choice Questions Answer Sheet

Many scientists contributed to prove that DNA is a genetic material. Fredrick Griffith was the first scientist in this race and he had given the transformation principle in bacteria. Fredrick Griffith (1928) conducted a series of experiments with Streptococcus pneumoniae, the bacterium causing pneumonia. He observed two strain of this bacteria: Experiment: He concluded that

The following questions consist of two statements, one labelled as Assertion (A) and the other labelled the Reason (R). Examine these two statements carefully and select the most appropriate answer codes.A. Assertion and reason both are correct and reason is the correct explanation of Assertion.B. Assertion and reason both are correct and reason is not

This post contains the MCQ for the three chapters Principles of Inheritance and Variations, Molecular Basis of Inheritance and Evolution in Class 12 Biology Multiple Choice Questions a. I and III are correctb. I and IV are correctc. II and III are correctd. II and IV are correct Answersheet

Ribonucleic acid was the first genetic material. The 2′-OH of nucleotide is a reactive group that makes RNA catalytic. It is evident that essential life processes such as metabolism, translation, splicing, etc. have evolved around RNA even before DNA has evolved as a genetic material. Structure of Ribonucleotide chain: In RNA also each nucleotide has