Biology MCQs

31. Which of the following cells of the immune system does not perform phagocytosis?
[A] Macrophage
[B] Neutrophil
[C] Eosinophil
[D] Basophil

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32. The human urinary bladder can hold up to ___ml of urine
[A] 400 ml
[B] 600 ml
[C] 800 ml
[D] 1000 ml

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33. A tube that allows urine to pass out of the body __
[A] penis
[B] urethra
[C] scrotum
[D] All of the above

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34. Which of the following hormone are surges that trigger ovulation?
[A] Estrogen
[B] LH
[C] FSH
[D] Progesterone

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35. A process where new combinations of alleles are formed is called?
[A] Genetic Drift
[B] Mutation
[C] Genetic Recombination
[D] Natural selection

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36. Which of the following is the first GM crop in India?
[A] mustard
[B] brinjal
[C] potato
[D] None of these

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37. What does Insulin do?
[A] Increases blood sugar
[B] Decreases blood sugar
[C] Constricts blood vessels
[D] Stimulates lactation

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38. Which of the following is/are agent(s) of infection?

[A] Physical contact
[B] Water
[C] Vectors
[D] All of the above

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39. Which of the following creatures is oviparous?
[A] Frog
[B] Rabbit
[C] Mouse
[D] Squirrel

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40. DNA shows hyperchromicity on ____:
[A] Replication
[B] Heating
[C] Crystallizing
[D] Cooling

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