Biology MCQs

31. How many numbers of bones are present in the middle ear?
[A] Two
[B] Three
[C] Six
[D] Nine

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32. Which immunity is acquired throughout life?
[A] Innate immunity
[B] Active immunity
[C] Passive immunity
[D] Both 2 and 3

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33. What is the role of ADH in kidney function?
[A] It controls the amount of water absorption by the nephrons.
[B] It helps in excretion of toxic nitrogenous compounds.
[C] It regulates the amount of glucose processed and excreted by the kidneys.
[D] None of these

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34. Which of the following is protein hormone?
[A] Oxytocin
[B] Insulin
[C] TSH
[D] Antidiuretic hormone

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35. Which gland is responsible for the release of Neurohormone?
[A] Hypothalamus
[B] Pituitary
[C] Thyroid
[D] Pancreas

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36. Name the hormone which takes part in the release of FSH and LH from the anterior pituitary.
[A] Growth hormone
[B] GnRH
[C] Somatostatin
[D] TRH

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37. Chickenpox is a highly contagious disease caused by the __
[A] Pasteurella pestis
[B] Bacillus anthracis
[C] Bordetella pertussis
[D] Varicella zoster

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38. Which disease is caused by Yersinia pestis?
[A] Pertussis
[B] Plague
[C] Leprosy
[D] Diptheria

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39. Which organ is affected by typhoid?
[A] liver
[B] spleen
[C] muscles
[D] All of the above

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40. Mendel did not give __.
[A] Concept of genes
[B] Concept of inheritance
[C] Concept of dominance
[D] Concept of chromosomes

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