121: The water pollution in river is measured by the dissolved amount of

(a) Chlorine
(b) Ozone
(c) Nitrogen
(d) Oxygen
122: With reference to the Genetically Modified mustard (GM mustard) developed in India, consider the following statements :

1. GM mustard has the genes of a soil bacterium that give the plant the property of pest-resistance to a wide variety of pests.
2. GM mustard has the genes that allow the plant cross-pollination and hybridization.
3. GM mustard has been developed jointly by the IARI and Punjab Agricultural University.

Which of the statements given above is/are correct ?

(a)1 and 3 only
(b)2 only
(c)2 and 3 only
(d)1, 2 and 3
123: The cure for which of the following diseases exists?

(a) Blood cancer

(b) Hepatitis-B

(c) Breast Cancer

(d) Lung Cancer
124: Match List I with List II and select the correct answer using the codes given below the lists :

List I List II

I. Potassium bromide (A) Fertiliser
II. Potassium nitrate (B) Photography
III. Potassium sulphate (C) Bakery
IV. Mono-potassium tartarate (D) Gunpowder

Codes:

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

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

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

(d) I-D, II-B, III-A, IV-C
125: ELISA test is prescribed for:

(a) AIDS

(b) Typhoid

(c) Polio

(d) Cancer