Biology MCQs

31. The adrenal cortex secretes all except __
[A] Androgenic steroid
[B] Cortisol
[C] Relaxin
[D] Aldosterone

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32. What may complicate the process of gene cloning within the cell?
[A] One recognition site
[B] Foreign DNA
[C] More than one recognition site
[D] Antibody

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33. Which of the following is the longest vein in the human body?
[A] Trochlear
[B] Saphenous vein
[C] Inferior vena cava
[D] Trigeminal

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34. Flowers emit fragrance to ____:
[A] Drive away flies
[B] Purify air
[C] Attract insects
[D] All of the above

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35. Somatotropin is another name for _____:
[A] Growth hormone
[B] Digestive juice
[C] Tear gas
[D] Laughing gas

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36. The elements known as primary nutrients for plants are ____:
[A] Nitrogen, Phosphorus and Potassium
[B] Potassium, Boron and Nitrogen
[C] Nitrogen, Oxygen and Silicon
[D] Nitrogen, Phosphorus and Iron

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37. Diaphragm is a means of contraception. It is fixed ____:
[A] Over cervix
[B] In the uterus
[C] In the fallopian tube
[D] None of the above

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38. Total number of muscles present in our body is ____:
[A] 556
[B] 565
[C] 656
[D] 665

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39. For immediate energy production in cells, one should take ____:
[A] Glucose
[B] Proteins
[C] Sucrose
[D] Vitamin C

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40. The plant from which cocoa and chocolate are obtained is a ___:
[A] Herb
[B] Shrub
[C] Small tree
[D] Very big tree

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