Biology MCQs

1. What is the main function of Lymphocytes?
[A] Production of Antibodies
[B] Production of Antigens
[C] Production of White Blood Cells
[D] All of the above

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2. Which among the following fishes does not have Central Nervous System?
[A] Dog Fish
[B] Cuttle Fish
[C] Jelly Fish
[D] Star Fish

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3. In which among the following organ, “Bowman’s Capsule” is found?
[A] Liver
[B] Kidney
[C] Heart
[D] Small intestine

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4. Which among the following glands secrets Adrenocorticotrophic Hormone?
[A] Adrenal
[B] pancreas
[C] pituatry
[D] Thyriod

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5. With which of the following animals Galton’s whistle is most commonly associated?
[A] Horses
[B] Dogs
[C] whales
[D] Shark

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6. Which among the following have a ‘mixed heart’ ,that is the heart in which the oxygenated and the deoxygenated blood is mixed?
[A] Birds
[B] Fishes
[C] Reptiles
[D] Nematodes

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7. Kernel smut and Sheath blight are two common diseases which occur due to excessive use of nitrogen fertilizer. The diseases are most commonly found in which of the following crops?
[A] Rice
[B] Potato
[C] Cotton
[D] Sugarcane

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8. Which vitamin protects us from Pellagra disease?
[A] Vitamin B5
[B] Vitamin B7
[C] Vitamin B3
[D] None of the above

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9. Who among the following proposed the theory of origin of life on earth?
[A] Haldane
[B] Stanley Miller
[C] Harold C. Urey
[D] Lamarck

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10. Which of the following is the reason behind bleeding through nose in high mountain regions? (UPSC Prelims 1979).
[A] The pressure of the blood capillaries is higher than the outside pressure
[B] The pressure at high altitudes is greater than that in the plains
[C] The blood pressure increases at high altitudes
[D] The blood pressure decreases at high altitudes

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