General Science - Biology MCQs

51. Which among the following have been found to produce a protein called Defensin-1, which has been found potential to develop drugs for antibiotic resistant bacteria?
[A] Codfish
[B] Cuttle Fish
[C] Honey bee
[D] Domestic Fly

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52. The Gram Positive Bacteria can be identified by the Gram staining because of the following reasons?
[A] The cell walls have more lipids compared to peptidoglycan
[B] The Cells walls have more Peptidoglycan compared to Lipids
[C] The Cells membrane has more fatty acids
[D] The plasma has Peptidoglycans

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53. The Bovine spongiform encephalopathy (BSE) is commonly known as _______?
[A] Foot & Mouth Disease
[B] Mad Cow Disease
[C] Fog fever
[D] Creutzfeldt-Jakob disease

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54. The natural Pacemaker in the Human Heart is located in the SA node which is present in which among the following chambers?
[A] Right Auricle
[B] Left Auricle
[C] Right Ventricle
[D] Left Ventricle

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55. Overdose of antibiotics will cause the suppression of synthesis of which among the following vitamins in human body?
[A] Vitamin A
[B] Calciferol
[C] Vitamin K
[D] Biotin

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56. Who among the following first synthesized “gene” in a laboratory ?
[A] Arthur kornberg
[B] Hargobind Khorana
[C] Gregor Mendel
[D] Watson and crick

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57. Which among the following is correct definition of Bacteriophage?
[A] A Bacteria that destroys Virus
[B] A Virus that destroys Bacteria
[C] A Bacteria that destroys another bacteria
[D] A Bacteria that destroys Fungi

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58. A particular cell organelle is sometimes referred certain enzymes that can break down the cell components or even the whole cell. which one of the following is such an organelle ?
[A] Lysosome
[B] Mesosome
[C] Phagosome
[D] Ribosome

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59. The disorder “Pityriasis simplex capillitii ” is most commonly known as which among the following?
[A] Tulip fingers
[B] Dandruff
[C] Baldness
[D] Eczema

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60. What is the number of the Chromosomes affected by Turner syndrome?
[A] 44
[B] 45
[C] 46
[D] 47

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