3796: Chlorophyll is a naturally occurring chelate compound in which central metal is
(a) Magnesium
(b) Copper
(c) Calcium
(d) Iron
3797: Guinea pigs used in medical research are:
(a) Rodents
(b) Black swine
(c) Stocky and brown in colour
(d) Found in Asia only
3798: Endoscopy, a technique used to explore the stomach or other inner parts of the body is based on the phenomenon of
(a) total internal reflection
(b) interference
(c) diffraction
(d) polarisation
3799: Cloth is woven horizontally with 1 cm wide thickness of violet and white colour alternately and 1 cm wide thickness of grey and white colour alternately in the vertical direction. The resulting pattern will consist of:
(a) Squares with 3 different colours
(b) Squares with 4 different colours
(c) Stripes with 3 different colours
(d) Stripes with 4 different colours
3800: Which of the following are the reasons for the occurrence of multi-drug resistance in microbial pathogens in India?
1. Genetic predisposition of some people
2. Taking incorrect doses of antibiotics to cure diseases
3. Using antibiotics in livestock farming
4. Multiple chronic diseases in some people
Select the correct answer using the code given below.
(a) 1 and 2
(b) 2 and 3 only
(c) 1, 3 and 4
(d) 2, 3 and 4