Biology MCQs

1. Who among the following is considered to be the father of antiseptic surgery?
[A] Dr. Lineus Pauling
[B] Dr. Joseph Lister
[C] Robert Koch
[D] Louis pasteur

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2. Which antigen is present in O blood group?
[A] Either A or B
[B] Both A and B
[C] Neither A nor B
[D] O

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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. Islets of langerhans are related to which of the following?
[A] Calcitonin
[B] Insulin
[C] Thyroxine
[D] None of the above

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5. Who among the following established that genetic code of all organisms is spelled out in three-letter words, each set of three nucleotides codes for a specific amino acid?
[A] Hargobind Khorana
[B] Barbara McClintock
[C] Theodor O. Diener
[D] Joseph L. Goldstein

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6. Which of the following statements is NOT true regarding the Vitamin C?
[A] Only Vitamin C is to be taken externally, all others are produced in the human body.
[B] Vitamin C is the only vitamin which is also a hormone.
[C] Scurvy is caused by the deficiency of Vitamin C
[D] Vitamin C is a water-soluble vitamin.

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7. Which organs have different basic structures, yet present a similarity in appearance and perform analogous functions?
[A] Kidney and liver
[B] Heart and lungs
[C] Wings of a bat and a bird
[D] Brain and spinal cord

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8. Which of the following are chlorophyll-bearing, simple, thalloid, autotrophic and largely acquatic(both fresh water and marine) organisms?
[A] Gymnosperms
[B] Bryophytes
[C] Pteridophytes
[D] Algae

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9. Which of the following crops helps in nitrogen fixation?
[A] Rice
[B] Wheat
[C] Maize
[D] Beans

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10. The varieties of corn can be improved by which of the following methods?
[A] Dihybrid crosses
[B] Back cross
[C] Double cross
[D] Natural selection

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