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Biology MCQ Questions with answers

Here Important Biology MCQ questions are added which are frequently asked in almost all the examinations. You can check the correct answer of any question on clicking the show answer button or on option itself. The Correct answer will be displayed below. You can share any question with your friends on whatsapp by tapping whatsapp button.

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Learn Biology MCQs [Page 1 of Department 12]

1) The part of the flower that can carry out photosynthesis is

(A) Corolla
(B) Androecium
(C) Calyx
(D) Gynoecium
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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2) The famous double-helix model of DNA was proposed by

(A) Schleiden and Schwann
(B) Linnaeus and Theophrastus
(C) Brown and Hooke
(D) Watson and Crick
Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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3) Which one of the following is the limiting rate of photosynthesis in nature?

(A) O2
(B) CO2
(C) Chlorophyii
(D) light
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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4) Which of the following one of the following is an indicator of air pollution

(A) Bryophytes
(B) Algae
(C) Cycas
(D) Lichens
Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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5) If waste materials contaminate the source of drinking water, Which among the given diseases will spread

(A) Scurvy
(B) Typhoid
(C) Anaemia
(D) Malaria
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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9) What causes the mottling of the dental enamel

(A) High levels of calcium in the water
(B) High levels of fluorides in the water
(C) High levels of nitrate in the water
(D) High levels of chlorine in water
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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10) Bone is used as a fertiliser as it contains the plant nutrient

(A) Nitrogen
(B) Sodium
(C) Phosphorus
(D) Calcium
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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