Biology MCQs

31. Listeriosis is a serious infection caused by __
[A] Listeria pestis
[B] Listeria monocytogenes
[C] Listeria papillomavirus
[D] None of these

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32. Which of the following is the most fatal non-infectious disease?
[A] AIDS
[B] Cancer
[C] Diabetes
[D] Obesity

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33. Which of the following test is used to diagnose Roundworm Infection?
[A] Widal Test
[B] Pap smear’s Test
[C] Gravidex Test
[D] Stool Test

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34. Which of the following is known as the “Father of Genetics”?
[A] Morgan
[B] Mendel
[C] Watson
[D] Bateson

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35. The bioethanol is subjected to rectification to remove?
[A] Sugar
[B] Enzymes
[C] Yeast
[D] Impurities

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36. Which of the following is divalent cations are usually used to make competent cells?
[A] Carbon
[B] Nitrogen
[C] Copper
[D] Calcium

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37. Which enzyme digests proteins in the stomach?
[A] Salivary amylase
[B] Trypsin
[C] Pepsin
[D] Pancreatic canal

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38. The number of heart beats on an average in an adult human is in the range of ___:
[A] 60-65
[B] 66-70
[C] 71-80
[D] 85-90

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39. Leaves of many grasses are capable of folding and unfolding because _____:
[A] They have stomata on both sides of the leaf
[B] Their mesophyll is not differentiated into palisade and spongy parenchyma
[C] They have high levels of silica
[D] They have specialised bulliform cells

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40. Which one of the following is not the excretory organ?
[A] Kidneys
[B] Liver
[C] Lungs
[D] Spleen

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