Biology MCQs

11. Which of the following are the postulates of Darwin’s theory of evolution?
[A] Within any population, there is natural variation.
[B] Even though all species produce a large number of offsprings, populations remain fairly constant
[C] The struggle for survival within populations eliminates the unfit individuals.
[D] All the above are correct

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12. What is the name of a group of similar cells performing a specific function?
[A] Tissue
[B] Organ
[C] Organ system
[D] Cellular organization

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13. Which of the following disease is non-communicable in nature?
[A] Tuberculosis
[B] Chicken-pox
[C] Cholera
[D] Cancer

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14. How the body temperature is maintained?
[A] Due to temperature regulating mechanism located in the base of the brain
[B] Due to excessive intake of water
[C] Due to regular intake of foods
[D] Due to the constant flow of blood in the capillaries

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15. Mitochondrial DNA in an individual comes from which of the following sources? (UPSC Prelims 1991)
[A] Male parent
[B] Female parent
[C] Both parents
[D] Neither of the parents

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16. Which of the following contain a protein named Alpha-keratin? (UPSC Prelims 1997)
[A] Blood
[B] skin
[C] wool
[D] eggs

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17. Which of the following is the name given to the cellular and molecular control of programmed cell death? (UPSC Prelims 2001)
[A] Apoptosis
[B] Ageing
[C] Degeneration
[D] Necrosis

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18. Which among the following are female sex harmones?
[A] Estrogen
[B] Progesterone
[C] Testosterone
[D] Both a and b

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19. Which among the following types of bees does not have commercial importance?
[A] Dammer bee
[B] The little bee
[C] The Indian hive bee
[D] None of the above

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20. Robert Hooke is known for which of the following works?
[A] how messages pass between nerve cells in mammals
[B] first use of the word cell
[C] theory of punctuated equilibrium
[D] aquatic ape theory

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