Biology MCQs

31. A connective tissue cord extending between the testis and the abdominal wall is known as?
[A] mesenteric cord
[B] gubernaculum
[C] testis cord
[D] spermatic cord

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32. The type of placenta found in humans is called __.
[A] Discoidal
[B] Cotyledonary
[C] Zonary
[D] Diffuse

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33. The corpus luteum is the source of secretion of:
[A] LH
[B] Estradiol
[C] Estrogen
[D] Progesterone

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34. What causes black quarter in cattle?
[A] Euphorbia tirucalli
[B] Clostridium chauvoei
[C] Bacillus anthracis
[D] None of these

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35. Which of the following is VAM?
[A] Bioinsecticide
[B] Bioherbicide
[C] Endomycorrhiza
[D] Ectomycorrhiza

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36. Intestinal bacteria synthesizes which of the following in the human body?
[A] Vitamin D
[B] Vitamin K
[C] Proteins
[D] Fats

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37. Which one of the following is not a true fish?
[A] Jellyfish
[B] Starfish
[C] Cuttlefish
[D] All of the above

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38. Stethoscope works on which principle?
[A] Reflection of sound
[B] Reflection of light
[C] Conversion of current into sound
[D] Conversion of sound into current

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39. Which of the following multiplies very slowly in comparison to others?
[A] Bacteria
[B] Fungi
[C] Virus
[D] Worms

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40. Barr body is found in ____:
[A] Female somatic cells
[B] Male somatic cells
[C] Sertoli cells
[D] Sperm

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