Biology MCQs

31. GM rice is enriched with which of the following vitamin?
[A] K
[B] E
[C] A
[D] D

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32. Who among the following invented Bt cotton?
[A] Ernst Berliner
[B] James Black
[C] Erwin Chargaff
[D] Rachel Carson

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33. In winter, at the time of hibernation, Toads maintain breathing through ____:
[A] Lungs
[B] Skin
[C] Both by Skin and Lungs
[D] Buccal cavity

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34. In females, the uterus is ____:
[A] Single
[B] Double
[C] Triple
[D] Quadruple

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35. The development of a fruit without fertilization is called ____:
[A] Apomixis
[B] Parthenocarpy
[C] Hybridogenesis
[D] Gametogamy

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36. Haemoglobin has highest affinity for ____:
[A] Carbon monoxide
[B] Nitrogen
[C] Oxygen
[D] Carbon dioxide

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37. Which of the following pairs is correctly matched?
[A] Vitamin-B : Rickets
[B] Vitamin-A : Scurvy
[C] Vitamin-E : Reproduction
[D] Vitamin-C: Night-blindness

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38. An enzyme produced by HIV that allows the integration of HIV DNA into the host cells DNA is ____:
[A] Ligase
[B] Integrase
[C] Helicase
[D] DNA gyrase

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39. The chicory powder which is mixed with coffee powder is obtained from which of the following part of plant?
[A] Root
[B] Fruit
[C] Stem
[D] Flower

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40. Conglobate gland is a leaf like structure found in ____:
[A] Male Ascaris
[B] Male Cockroach
[C] Female Cockroach
[D] Female Ascaris

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