716: The theory of "Jumping Genes" was propounded by
(a) Gregor Johann Mendel
(b) Thomas Hunt Morgan
(c) Barbara McClintock
(d) Watson and Crick
717: Who among the following being a renowned poet was a good painter also?
(a) Rabindra Nath Tagore
(b) Amrita Shergil
(c) A. N. Tagore
(d) S. N. Bannerjee
718: Which of the following shipyards makes warships?
(a) Cochin Shipyard
(b) Mishra Dhatu Nigam Ltd.
(c) Mazagon Dock
(d) Hindustan Shipyard
719: Which one of the following metals does not form amalgams ?
(a) Zinc
(b) Copper
(c) Magnesium
(d) Iron
720: How can the height of a person who is six feet tall be expressed (approximately) in nanometres?
(a) 183 x 106 nanometres
(b) 183 x 107 nanometres
(c) 234 x 106 nanometres
(d) 234 x 107 nanometres