![MSC [MICROBIOLOGY/BIOTECHNOLOGY] MCQ - 9](https://i0.wp.com/1.bp.blogspot.com/-btGl759u2LQ/XsDeZzgL9FI/AAAAAAAAnvA/G7X4shTXCsspEQaVByUMeDjQ_4LVHE9-wCK4BGAsYHg/w320-h214/microbiology.png?resize=320%2C214&ssl=1 "MSC [MICROBIOLOGY/BIOTECHNOLOGY] MCQ - 9")
1 Genetic drift is on account of
A Variation
A Variation
B Decrease in population
C Increase in population
D Mutation
2 Which of the following is a primary lymphoid organ?
A Lymph node
B Thymus
C Spleen
D Peyer’s patches
3 Which one of following is not a lymphocyte
A T cell
B B cell
C Natural killer cell
D Dendritic cell
4 Which one of the following is responsible for the movement of O2 from alveoli of the lungs into the blood in pulmonary capillaries
A Active transport
B Secondary active transport
C Facilitated diffusion
D Passive diffusion
5 Which one of the following shows the development of a syncytial blastoderm?
A Frog
B Bird
C Insect
D Starfish
6 Testosterone is secreted by which of the following cells of the testis?
A Spermatozoa
B Sertoli’s cells
C Leydig’s cells
D Spermatids
7 Crossing over takes place in which of the following stages of prophase 1 of meiosis?
A Pachytene
B Leptotene
C Zygotene
D Diplotene
8 Each of the following agents is recognized cause of diarrhea except
A Clostridium prefringens
B Vibrio cholerae
C Enterococcous faecalis
D Escherichia coli
9 In your opinion, what would happen to actin if troponin and tropomyosin complex is removed from the muscle?
A Actin will strongly bind with myosin
B Actin – myosin interaction will be inhibited
C Actin will convert into G-actin
D ATP hydrolyzing sites at myosin head get deactivated
10 The bond angle in H2O is
A 101.9
B 104.5
C 107.3
D 109.5
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Question
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1
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2
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3
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4
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5
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6
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7
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8
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9
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10
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Answer
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D
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B
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D
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C
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A
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C
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A
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C
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A
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B
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# MSC [MICROBIOLOGY/BIOTECHNOLOGY] MCQ-8
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