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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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Q) Other than spreading malaria, anopheles mosquitoes are also vectors of

(A) dengue fever
(B) filariasis
(C) encephalitis
(D) yellow fever
Correct Answer - Option (B)

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

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Mr. Dubey • 51.32K Points
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Q) O2 released in the process of photosynthesis comes from

(A) CO2
(B) water
(C) sugar
(D) pyruvic acid
Correct Answer - Option (B)

Explanation:
Photosynthesis is the process by which plants use the energy of light to produce carbohydrates and molecular oxygen (O2) from carbon dioxide (CO2) and water.

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Mr. Dubey • 51.32K Points
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Q) Placenta is the structure formed

(A) by the union of foetal and uterine tissue
(B) by foetus only
(C) by fusion of germ layers
(D) None of these
Correct Answer - Option (A)

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

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Mr. Dubey • 51.32K Points
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Q) Neurospora is used as genetic material because

(A) it has short life cycle of 10 days
(B) the product of single meiosis can be easily analysed
(C) meiotic products are linearly arranged in the form of ordered tetrads
(D) is a diploid fungus
Correct Answer - Option (A)

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

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Mr. Dubey • 51.32K Points
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Q) N2 content is kept constant in the biosphere due to

(A) N2 fixation
(B) industrial pollution
(C) nitrogen cycle
(D) absorption of N2
Correct Answer - Option (C)

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

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