Friday, April 19, 2019

WBCS Polity and Constitution MCQs Prelims and Mains

Biology MCQs For WBCS Prelims and Mains P3



21. According to Darwin, the unit of Natural Selection is
(A) Gene
(B) Species
(C) Individual
(D) Family.

Correct Answer: [B] Species.

22. AIDS is caused by
(A) Protozoa
(B) Helminth
(C) Bacteria
(D) Virus.

Correct Answer: [D] Virus.

23. The first hormone produced by Genetic Engineering is
(A) Thyroxin
(B) Insulin
(C) Estrogen
(D) Testosterone.

Correct Answer: [B] Insulin.

24. Name of an insectivorous plant
(A) Basak
(B) Pitcher plant
(C) Gulancha
(D) Nayantara.

Correct Answer: [B] Pitcher plant.

25. Carcinoma is cancer originating from
(A) Muscular tissue
(B) Nerve tissue
(C) Epithelial tissue
(D) Connective tissue.

Correct Answer: [C] Epithelial tissue.




26. Green vegetables are a good source of
(A) Minerals
(B) Carbohydrates
(C) Vit-A
(D) Vit-C.

Correct Answer: [A] Minerals.

27. Enzymes speed up biochemical reactions by
(A) Increasing the temperature of the reaction.
(B) Lowering the activation energy of the reaction.
(C) Increasing the activation energy of the reaction.
(D) Lowering the temperature of the reaction.

Correct Answer: [B] Lowering the activation energy of the reaction.

28. A red rose, when seen in the green light, appears
(A) White in color
(B) Black in color
(C) Red in color
(D) Green in color.

Correct Answer: [B] Black in color.

29. Birds differ from a bat in the absence of
(A) Trachea
(B) Diaphragm
(C) Warmblood
(D) Four-chambered heart.

Correct Answer: [B] Diaphragm.

30. Iodine is administered to patients suffering from
(A) Ricket
(B) Rheumatism
(C) Goiter
(D) Night blindness.

Correct Answer: [C] Goiter.







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