Biology MCQs

11. Which of the following branch of biology deals with the study of viruses?
[A] Cytology
[B] Mycology
[C] Virology
[D] Taxonomy

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12. Who gave theory of photosynthesis?
[A] Maurice Hilleman
[B] Jack Horner
[C] Jan Ingenhousz
[D] Franz Mesmer

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13. Which of the following person related to the invention of DDT?
[A] Paul Muller
[B] Roe Berth
[C] Frances Kelsey
[D] Jack Horner

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14. What is Rancidity?
[A] Deterioration of Fat
[B] Deterioration of Glucose
[C] Deterioration of Protein
[D] Deterioration of Vitamins

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15. Which of the following is a plant without seed vascular tissue?
[A] Angiosperm
[B] Pteridophytes
[C] Bryophytes
[D] Gymnosperms

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16. Which of the following is true about the cell wall of Gram-positive bacteria?
[A] It consists of multiple layers
[B] It is thicker than that associated with gram-negative bacteria
[C] It contains teichoic acids
[D] All of these

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17. What is a motile flagellated asexual cell called?
[A] Sperm
[B] Zoospore
[C] Oospore
[D] Androspore

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18. Where is the phloem located?
[A] outer side of the vascular bundle.
[B] centre of the vascular bundle
[C] marginal regions of leaves and stems
[D] None of these

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19. The increase in shoot and root length is called which of the following?
[A] Primary growth
[B] Secondary growth
[C] Little growth
[D] None of these

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20. Which of the following stimulates by gibberellin hormone?
[A] shoot elongation
[B] seed germination
[C] fruit and flower maturation
[D] All of the above

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