section 5 MCQ Questions & Answers Detailed Explanation

MOST IMPORTANT general science mcq - 16 EXERCISES

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The following question based on vitamins, nutrition, health, disease and treatment topic of general science mcq

Questions : Myopia or short sightedness is corrected by

(a) Use of plain concave lens

(b) Use of convex lens

(c) Use of concave lens

(d) Use of plain convex lens

The correct answers to the above question in:

Answer: (c)

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Question : 1

Zidovudine and Nevirapine drugs are used for treatment

a) Tuberculosis

b) AIDS

c) Leukaemia

d) Syphilis

Answer: (b)

Zidovudine and Nevirapine is a nucleoside analog reversetranscriptase inhibitor (NRTI), a type of antiretroviral drug used for the treatment of HIV/AIDS infection. These inhibit the enzyme (reverse transcriptase) that HIV uses to synthesize DNA.

Question : 2

White tip of maize leaves indicates the deficiency of

a) N

b) Fe

c) Mn

d) Zn

Answer: (d)

Question : 3

Which one of the following pairs is not correctly matched?

a) Cloning - Genetic replica

b) Ebola virus - Smallpox

c) Biometric identification - Figerprints and Iris scan

d) DNA Figerprinting - Paternity or criminal identification

Answer: (b)

Question : 4

Deficiency of Iodine causes

a) Goitre

b) Night blindness

c) Cancer

d) Osteoporosis

Answer: (a)

Question : 5

Antigen binding site in an antibody is found between

a) two heavy chains

b) one heavy and one light chain

c) two light chains

d) either between two light chains or between one heavy and one light chain depending upon the nature of antigen.

Answer: (b)

An antibody is a Y-shaped molecule, consists of two heavy and two light chains joined together by disulphide bonds. The two arms of this Y-shape structure help in antigen recognition and binding.

Question : 6

Which one of the following is not correctly matched?Pollutants Disease caused

a) Nitrate Ion - Blue baby syndrome

b) Mercury - Minamata disease

c) Cadmium - Itai-Itai disease

d) Fluoride Ion – Indigestion

Answer: (d)

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