Biology MCQs

11. Plant tissues are of how many types?
[A] 3
[B] 2
[C] 5
[D] 6

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12. Which of the following forms of Nitrogen is taken up by Higher Plants? (UPSC Prelims 1979).
[A] Nitrites only
[B] Nitrates only
[C] Nitrates and Ammonium
[D] Urea

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13. Which vitamin is also called as niacin?
[A] Vitamin C
[B] Vitamin B3
[C] Vitamin B12
[D] Vitamin B9

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14. What does H denote in the popular term HIV ?
[A] Human
[B] Higher
[C] Hybrid
[D] NOTA

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15. Who among the following is considered as the father of microbiology?
[A] Stephen Hales
[B] Antonie Van Leeuwenhoek
[C] Edwin John Butler
[D] Pier Antonio Micheli

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16. Which of the following vitamins was crystallized by Harry Holmes and Ruth Corbet?
[A] Vitamin A
[B] Vitamin B
[C] Vitamin C
[D] Vitamin E

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17. Viral DNA is removed from the host’s chromosomes and the lytic cycle is called which of the following process?
[A] spontaneous induction
[B] inductive infection
[C] resultant induction
[D] spontaneous infection

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18. Which plant tissue is the only tissue with the highest refractive index due to the presence of pectin?
[A] Sclerenchyma
[B] Collenchyma
[C] Parenchyma
[D] Laticiferous

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19. Where are the apical meristems found?
[A] apex
[B] roots
[C] buds
[D] All of the above

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20. Which fruit is produced by parthenocarpy?
[A] Brinjal
[B] Apple
[C] Banana
[D] Jackfruit

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