Biology MCQs

1. Which among the following plant hormone plays most important role in establishing dormancy in seeds?
[A] Ethylene
[B] Gibberellic acid
[C] Abscisic Acid
[D] Auxin

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2. Maximum number of animals species belong to which among the following groups?
[A] Mammalia
[B] Aves
[C] Pisces
[D] Arthropoda

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3. Which among the following diseases is not caused by a virus ?
[A] Chickenpox
[B] Hepatitis
[C] Cholera
[D] Dengue

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4. Which of the following Vitamin is required for Normal Blood Circulation ?
[A] Vitamin A
[B] Vitamin K
[C] Vitamin D
[D] Vitamin E

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5. How many arteries are present in Human Umbilical Cord?
[A] 1
[B] 2
[C] 3
[D] 4

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6. Which among the following is correct definition of Bacteriophage?
[A] A Bacteria that destroys Virus
[B] A Virus that destroys Bacteria
[C] A Bacteria that destroys another bacteria
[D] A Bacteria that destroys Fungi

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7. In humans, fertilization normally occurs in __?
[A] Ovary
[B] Fallopian Tube
[C] Uterus
[D] Placenta

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8. Who among the following is the Father of Mutation theory of evolution?
[A] Alec Jeffery
[B] T.H. Morgan
[C] Bateson
[D] Hugo de Vries

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9. How Green plants in the sea are useful for the respiration of fish?
[A] They give out oxygen
[B] They give out carbon dioxide
[C] The give out oxygen and carbon dioxide simultaneously
[D] They take oxygen and give out carbon dioxide

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10. The saliva helps in the digestion of which of the following materials?
[A] Starch
[B] Proteins
[C] Fibers
[D] Fats

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These questions are part of GKToday's 40,000+ GK Questions Course in GKToday Android Application which provides more than 40K questions with explanations suitable for all Competitive Exams of India.
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