neet question

Tetracycline is used for the treatment of 1. Chalera 2. Typhoid 3. TB 4. Plague

This determines structure and function of the organism 1. RNA 2. DDT 3. DNA 4. CNA

The science of birds and their living habits is known as 1. Micro biology 2. Ornithology 3. Cryptalogy 4. Bio technology

Who is considered as the "Wizard of the wonder Drugs?" 1. Ronald Ross 2. M.S. Swaminathan 3. Y. Subba Rao 4. H.C. Crick