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2361. which of the following is used in beauty parlours for hair setting ?

A. Chlorine

B. Sulphur

C. Phosphorus

D. Silicon

Explanation:

2362. The most dangerous consequence of excessive deforestion is

A. loss of forest wealth

B. loss of many valuable plants

C. destruction of wild amimal habitats

D. soil erosion

Explanation:

2363. Iron combines with pigment porphyrin to form

A. xanthophyll

B. chlorophyll

C. carotenes

D. heme

Explanation:

2364. The most profound impact of the recombinant DNA technology is that is permits

A. control of intectious diseases

B. test tube babies

C. cheaper insulin production

D. mixing genetic information for different species

Explanation:

2365. In which one of the following types of cell divisions does crossing over of chromosomes takes place ?

A. Mitosis

B. Meiosis

C. Amitosis

D. Cytokinesis

Explanation:

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