1. Who invented DNA Structure ?

Answer: Crick(UK), Waston(US), Wilkins(UK) in 1951

2. Who invented Bacteria ?

Answer: Leeuwenhock of Netherlands in 1683

3. Who invented Electron ?

Answer: Thomson. J of Britain in 1897

4. Who invented Piano ?

Answer:

Bartolomeo Cristofori

5. Who invented Penicillin ?

Answer: Alexander Fleming of Britain in 1928.

6. Who invented Dynamo ?

Answer:

Hypolite Pixii of France in 1832

7. Who invented Atomic theory ?

Answer: Dalton of Britain in 1803.