Biology MCQs

31. Which of the following is the correct order of travel of sperm through the female reproductive tract before it reaches the egg?
[A] Vagina > Fallopian tube > Uterus > Cervix
[B] Vagina > Cervix > Uterus > Oviduct
[C] Vagina > Uterus > Cervix > Oviduct
[D] Vagina > Fallopian tube > Cervix > Uterus

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32. Which of the following genera of fungi is not responsible for causing ringworms?
[A] Trichophyton
[B] Microsporum
[C] Epidermophyton
[D] Macrosporum

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33. Which legumes have a symbiotic relationship with two nitrogen-fixing bacteria?
[A] Crotalaria juncea
[B] Sesbania aculeata
[C] Sesbania rostrata
[D] Cyamopsis tetragonoloba

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34. Which of the following is the best fertilizer for paddy?
[A] Azolla pinnata
[B] Bacillus megatherium
[C] Rhizobium meliloti
[D] Bacillus polymyxa

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35. Bacteria protect themselves from viruses by fragmenting viral DNA?
[A] Ligase
[B] Endonuclease
[C] Exonuclease
[D] Gyrase

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36. Which of the following is NOT a function of restriction enzymes?
[A] Cleaving DNA at specific sites
[B] Generating fragmentation patterns of DNA
[C] Creating recombinant DNA
[D] Synthesizing new DNA strands

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37. Which chemical is used to obtain a precipitate of pure DNA?
[A] Methanol
[B] Ether
[C] HCl
[D] Ethanol

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38. Blood pressure is measured by ____:
[A] Hydrometer
[B] Thermometer
[C] Sphygmanometer
[D] Barometer

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39. Which of the following vitamins help in the absorption of calcium?
[A] Vitamin A
[B] Vitamin B
[C] Vitamin C
[D] Vitamin D

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40. Night blindness results from the deficiency of ___:
[A] Vitamin-E
[B] Vitamin-A
[C] Vitamin-B2
[D] Glucose

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