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 Ballistic missile ?

Answer: Wemher von Braun of Germany in 1944.

4. Who invented watch ?

Answer:

Peter Henlein invented the first portable time piece in 1504

5. Who invented Vitamin D ?

Answer:

Edward Mellanby discovered Vitamin D while researching a disease called rickets in 1922

6. Who invented Printing Press ?

Answer:

Johannes Gutenberg

7. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932