Biology MCQs

11. Which of the following is the name given to the population of cells derived from a single parent cell? (UPSC Prelims 1989)
[A] Haploid
[B] Diploid
[C] Symmetrical cell
[D] Clone

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12. Which one of the following diseases is least infectious? (UPSC Prelims 1991)
[A] Leprosy
[B] Tuberculosis
[C] Conjunctivitis
[D] Hepatitis

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13. Which one of the following is a useful functional association between fungi and the roots of higher plants? (UPSC Prelims 1999)
[A] Biofertilizer
[B] Coralloid root
[C] Lichen
[D] Mycorrhiza

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14. What does B denote in the term RBCs ?
[A] Build
[B] Blood
[C] Bloody
[D] Building

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15. Chromosome Theory of Inheritance was proposed by __?
[A] Pier Antonio Micheli
[B] Louis Pasteur
[C] Stephen Hales
[D] Thomas Hunt Morgan

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16. Which of the following biomolecules is more widely distributed in the cell?
[A] Chloroplast
[B] RNA
[C] DNA
[D] Spaherosomes

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17. In which of the following β-oxidation mainly occurs?
[A] Mitochondria

[B] Cytoplasm

[C] Nucleus
[D] Chloroplast

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18. What is Rancidity?
[A] Deterioration of Fat
[B] Deterioration of Glucose
[C] Deterioration of Protein
[D] Deterioration of Vitamins

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19. Where are sexual reproduction and mobile cells absent?
[A] Chlorophyceae
[B] Rhodophyceae
[C] Myxophyceae
[D] Phaeophyceae

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20. Which of the following do you consider the best evidence to show that the two species of algae are closely related.
[A] They both respire and release CO2
[B] They both are found in the same habitat
[C] They both reproduce asexually
[D] They both have same type of pigments

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