Biology MCQs

1. The cork cells are impervious to water. Which among the following is responsible to give this quality to Cork?
[A] Cellulose
[B] Cutin
[C] Suberin
[D] Glucose

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2. 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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3. From the point of view of evolution of living organisms, which of the following set of animals is a correct sequence of evolution?
[A] Whale, Kangaroo, Echidna
[B] Echidna, Whale, Kangaroo
[C] Kangaroo, Whale, Echidna
[D] Echidna, Kangaroo, Whale

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4. Which one of the following is a useful functional association between fungi and the roots of higher plants?
[A] Mycorrhyza
[B] Lichen
[C] Root Nodules
[D] Cluster roots

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5. How many vocal cords are there in the human voice box?
[A] one
[B] Three
[C] Two
[D] Four

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6. Which of the following causes Dysentery and Influenza?
[A] Bacteria
[B] Viruses
[C] Bacteria and Viruses respectively
[D] Viruses and Bacteria respectively

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7. Haemophilia is a genetic disorder that leads to which of the following conditions?
[A] Decrease in haemoglobin level
[B] rheumatic heart disease
[C] decrease in WBC
[D] non-clotting of blood

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8. In the context of the organic evolution, the loss of limbs of snakes is explained by which of the following phenomenon?
[A] Use and disuse of organs
[B] adaptation to living in burrows
[C] natural selection
[D] inheritance of acquired characters

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9. In which of the following Alpha-keratin, a protein is present?
[A] Blood
[B] skin
[C] wool
[D] eggs

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10. How many bones are present in healthy adult human being?
[A] 205
[B] 207
[C] 206
[D] 208

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