Biology MCQs

31. Human sperm moves with the help of which of the following?
[A] Cilia
[B] Flagellum
[C] Basal body
[D] Nucleosome

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32. Which female organ serves as the birth canal to allow the delivery of the fetus during labor?
[A] Ovaries
[B] Uterus
[C] Fallopian Tubes
[D] Vagina

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33. Which of the following is an example of a loose association of nitrogen-fixing bacteria?
[A] Rhizobium
[B] Blue-Green algae
[C] Azotobacter
[D] Azospirillum

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34. Which of the following is a mobile genetic element?
[A] virus
[B] bacteria
[C] Transposons
[D] insertion sequence

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35. The right pulmonary artery is _____:
[A] Longer than the left
[B] Shorter than the left
[C] Wider than the left
[D] Of same size as the left

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36. Which one of the following is the ideal food for newborn babies?
[A] Milk
[B] Water
[C] Honey
[D] Sugar

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37. Dumb-bell shaped guard cells are present in
____:
[A] Mango
[B] Wheat
[C] Gram
[D] Groundnut

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38. Bio-magnification implies ____:
[A] Food is magnified
[B] Living beings are magnified
[C] Light is magnified
[D] Toxic matters are magnified

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39. Clitellum is found in ____:
[A] Leech
[B] Snail
[C] Nereis
[D] Earthworm

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40. What is the transplantation of graft between genetically identical individuals?
[A] Autograft
[B] Xenograft
[C] Iso-graft
[D] Allograft

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