Biology MCQs

31. What is the scrotal ligament?
[A] an accessory reproductive gland in male mammals
[B] elastic tissue which connects the cauda epididymis to the scrotal sac
[C] remnant of gubernaculum in a fetus
[D] None of these

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32. Which of the following is not a Degenerative disease?
[A] Hypertension
[B] Atherosclerosis
[C] Obesity
[D] Alzheimer’s disease

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

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34. ____ being a higher category, is the assemblage of families which exhibit a few similar characters:

[A] Class
[B] Species
[C] Genus
[D] Order

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35. Tendons and ligaments are
____:
[A] Connective tissue
[B] Muscular tissue
[C] Epithelial tissue
[D] Skeletal tissue

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36. The hydrophilic nature of DNA is due to the presence of ____:
[A] A number of hydrogen bonds
[B] Phosphate group
[C] Thymine base
[D] Deoxyribose sugar

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37. The radioactive Strontium-90 causes _____:
[A] Lung cancer
[B] Skin cancer
[C] Bone cancer
[D] Brain cancer

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38. Which chromosomal combination is responsible for maleness in man?
[A] XO
[B] XXX
[C] XX
[D] XY

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39. Which mosquito is the carrier of Zika virus?

[A] Culex
[B] Aedes
[C] Anopheles
[D] Culiseta

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40. Which of the following is the basic characteristic of a living organism?
[A] Ability to breathe
[B] Ability to reproduce
[C] Ability to move
[D] Ability to eat

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