Biology MCQs

11. Which one of the following is a membrane that protects the developing embryo from desiccation?
[A] Amnion
[B] Allantois
[C] Chorion
[D] Yolk sac

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12. How many chromosomes are present in human beings?
[A] 44
[B] 46
[C] 48
[D] 42

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13. Who among the following has defined race in population concept?
[A] Montagu
[B] Dobzhansky
[C] Templeton
[D] Hooton

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14. Which branch of biology is known for the study of fruits?
[A] Pomology
[B] Agronomy
[C] Floriculture
[D] None of these

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15. Which is the largest phylum of Animalia?
[A] Arthropoda
[B] Annelida
[C] Moluska
[D] Aves

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16. In which of the following hemocaelic body cavity is found?
[A] Cockroach
[B] Lizard
[C] Mosquito
[D] Honeybee

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17. Why lysosomes are called suicidal bags?
[A] because it contains digestive enzymes
[B] because it contains endoplasmic reticulum
[C] because it contains Phospholipids
[D] None of these

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18. Who among the following discovered the cytoplasm?
[A] Rudolf von Kölliker
[B] Camillo Golgi
[C] Christian de Duve
[D] Walther Flemming

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19. The lysogenic state is controlled by the activity of the regulatory region of the lambda phage genome, this region is called?
[A] immunity repressor
[B] immunity operon
[C] operon repressor
[D] none of these

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20. The sporophytic generation is represented only by the zygote__?
[A] Funaria
[B] Chlamydomonas
[C] Pinus
[D] Pinus

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