Biology MCQs

31. Which of the following is an accessory reproductive gland in male mammals?
[A] Inguinal gland
[B] Prostate gland
[C] Mushroom-shaped gland
[D] Gastric gland

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32. Klinefelter’s syndrome is an example of which of the following disorder?
[A] Mendelian Disorder
[B] Mitochondrial Inheritance
[C] Multifactorial Genetic Inheritance
[D] Chromosomal Disorder

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33. The root nodules for nitrogen fixation of a non-legume tree are?
[A] Frankia
[B] Rhizobium
[C] Azotobacter
[D] Thiobacillus

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34. Which one of the following elements is associated with teeth disorder?
[A] Chlorine
[B] Bromine
[C] Iodine
[D] Fluorine

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35. In which one of the following is swim bladder absent?
[A] Cartilaginous fish
[B] Silverfish
[C] Cuttlefish
[D] Bony fish

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36. Vitamin C is also known as _____:
[A] Tartaric acid
[B] Acetic acid
[C] Ascorbic acid
[D] Malic acid

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37. The basic structural and functional unit of living organisms is ____:
[A] Systems
[B] Cell
[C] Tissue
[D] Organ

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38. Diaphragm is a means of contraception. It is fixed ____:
[A] Over cervix
[B] In the uterus
[C] In the fallopian tube
[D] None of the above

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39. The process of photosynthesis involves conversion of ____:
[A] Chemical energy into radiant energy
[B] Solar energy into chemical energy
[C] Chemical energy into mechanical energy
[D] Mechanical energy into solar energy

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40. Organisms use bio-catalyst to break down complex substances into simpler substances. These bio–catalysts are called ____:
[A] Enzymes
[B] Vitamins
[C] Hormones
[D] None of the above

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