1046: 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
1047: The American multinational company, Monsanto has produced an insect-resistant cotton variety that is undergoing field- trails in India. A toxin gene from which ONE of the following bacteria has been transferred to this transgenic cotton ?

(a) Bacillus subtilis
(b) Bacillus thurigiensis
(c) Bacillus amyloliquifanciens
(d) Bacillus globlii
1048: Who of the following organized a march on the Tanjore coast to break the Salt Law in April 1930?

(a) V. O. Chidambaram Pillai
(b) C. Rajagopalachari
(c) K. Kamaraj
(d) Annie Besant
1049: Which one of the following is associated with the issue of control and phasing out of the use of ozone-depleting substances?

(a) Bretton Woods Conference
(b) Montreal Protocol
(c) Kyoto Protocol
(d) Nagoya Protocol
1050: Match List I with List II and select the correct answer using the codes given below the Lists :

List I--------------------List II

(Person)---------------(Achievement)

I. Deep Sen Gupta---(A) India's youngest International Master in the Sangli International Chess Tournament, 2000

II. P. Hari krishna----(B) The first Indian ever to win a gold in discuss in the World Athletic Championship in Santiago, 2000

III. Seema Antil------ (C) Won the title in the Asian Junior Chess Tournament in Mumbai, 2000

IV. Tejas Bakre ------ (D) Won the Under-12 title in the World Youth Chess Festival in Oropesa, 2000

Codes:

(a) I-D, II-C, III-B, IV-A
(b) I-B, II-D, III-A, IV-C
(c) I-D, II-A, III-B, IV-C
(d) I-B, II-A, III-C, IV-D