Biology MCQs

1. Which of the following protects the body against infectious disease and foreign invaders?
[A] Leukocytes
[B] Red blood cells
[C] Endoplasmic reticulum (ER)
[D] Golgi apparatus

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2. Which among the following fishes does not have Central Nervous System?
[A] Dog Fish
[B] Cuttle Fish
[C] Jelly Fish
[D] Star Fish

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3. Dengue which is found in tropical and subtropical regions around the world is a mosquito borne disease and caused by a _________?
[A] Bacteria
[B] Virus
[C] Fungi
[D] Protozoan

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4. Flowering in long day plants is related to which of the following?
[A] Auxin
[B] Gibberlin
[C] Cytokinin
[D] Ethylene

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5. Enteric fermentation is fermentation that takes place in the digestive systems of ruminant animals. It is one of the reasons for increased ________emissions?
[A] Carbondioxide
[B] Methane
[C] Ammonia
[D] Sulphur

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6. Sexual cannibalism is a concept in which the female kills the male after mating and is normally found in _________?
[A] Dragon fly
[B] Spider
[C] Honey Bee
[D] None of the above

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7. Which among the following conditions will give birth to Fraternal Twins?
[A] a single egg is fertilized to form one zygote which then divides into two separate embryos
[B] sperm cells fertilize both the ovum and the second polar body
[C] two eggs are independently fertilized by two different sperm cells
[D] none of the above

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8. Which of the following diseases is caused by consumption of a wheat bread contaminated with a fungus called Claviceps purpurea?
[A] Lathyrism
[B] Ergotism
[C] Cinchonism
[D] Mushroom Poisoning

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9. What is caused by the deficiency of Vitamin D?
[A] Rickets
[B] Night blindness
[C] Pellagra
[D] Scurvy

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10. Which among the following genus is known as the ‘handy man’?
[A] Homo sapiens sapiens
[B] Homo habilis
[C] Homo sapiens neanderthelensis
[D] Homo erectus

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