46. Who perfected GENETIC ENGINEERING?
(a) Cohen & Boyer
(b) Hunt & Davids
(c) Sinclair & Roberts
(d) Jaysson & Simons
47. FROZEN FOOD – Who discovered the first practical method of freezing food?
(a) C. Birdseye
(b) F. Rozenosh
(c) G. Findus
(d) R. Scott
48. This English inventor is known as the ‘Father of Computing.’
(a) Philo Farnsworth
(b) J. Presper Eckert
(c) John Mauchly
(d) Charles Babbage
49. Who is the only U.S. President to invent and patent something?
(a) Abraham Lincoln
(b) Theodore Roosevelt
(c) Thomas Jefferson
(d) Rutherford B. Hayes
50. What invention is credited to the Russian born American inventor Vladimir Kosma Zworykin?
(a) Telegraph
(b) Radio
(c) Television
(d) Dishwasher
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