Biology MCQs

31. The stroma of the ovary consists of blood vessels, nerves, muscle fibers, and a type of protein called?
[A] Fibrin
[B] Collagen
[C] Albumin
[D] Globulin

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32. Which of the following organism causes pneumonia?
[A] Bacteria
[B] Protozoan
[C] Fungi
[D] Slime mould

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33. The alternate form of a gene is__
[A] Alternate type
[B] Recessive character
[C] Dominant character
[D] Allele

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34. A process in which earthworms convert organic waste into manure rich in high nutritional content is called
[A] Farmyard manure
[B] Bio Compost
[C] Vermicomposting
[D] Green manure

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35. Which of the following is an example of a loose association of nitrogen-fixing bacteria?
[A] Rhizobium
[B] Blue-Green algae
[C] Azotobacter
[D] Azospirillum

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36. Who proposed rDNA technology?
[A] Herbert W. Boyer
[B] Stanley N
[C] Both 1 and 2
[D] Neither 1 nor 2

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37. Bt toxin is produced by a bacterium called __.
[A] Bacillus thuringiensis
[B] Bacillus anthracis
[C] Bacillus thermophilus
[D] Bacillus subtilis

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38. Which one of the following features is absent in a virus?
[A] Presence of cell wall
[B] Reproduce within host cell
[C] Fully parasitic in nature
[D] Presence of either DNA or RNA

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39. Which of the following are warm-blooded animals?
[A] Whales
[B] Draco
[C] Alytes
[D] Whale Sharks

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40. Which of the following cell organelle contains DNA apart from nucleus?
[A] Golgi Apparatus
[B] Mitochondria
[C] Cytoplasm
[D] Ribosome

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