Biology MCQs

11. Which of the following clearly define Pyrilla? (UPSC Prelims 1991)
[A] Disease of teeth and gums
[B] An insect pest
[C] A character of ancient Greek mythology
[D] A building heated by solar energy

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12. Which organelle in the cell, other than nucleus, contains DNA? (UPSC Prelims 2001)
[A] Centriole
[B] Golgi apparatus
[C] Lysosome
[D] Mitochondrion

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13. Which is the largest organ in the human body?
[A] Liver
[B] Large intestine
[C] Skin
[D] Pancreas

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14. The study of living organisms in relation to other organisms and their environment is known as__?
[A] Ecology
[B] Evolution
[C] Ethology
[D] Ethnology

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15. Who was the father of DNA Fingerprinting?
[A] James Watson
[B] Hargobind Khurana
[C] Alec Jeffereys
[D] Nirenberg

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16. rRNA is synthesized by which of the following?
[A] Nucleus
[B] Nucleolus
[C] Golgi body
[D] Cytoplasm

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17. Which of the following cell organelles does not contain DNA?
[A] Nucleus
[B] Mitochondria
[C] Lysosomes
[D] Chloroplast

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18. Which of the following virus is covered?
[A] Adeno
[B] Herpes
[C] Polio
[D] None of these

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19. Cooci which are mostly single or in pairs are called?
[A] Streptococci
[B] Diplococci
[C] Tetracocci
[D] None of these

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20. Algae cell wall is made up of which of the following?
[A] Chitin
[B] Cutin
[C] Cellulose
[D] Suberin

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