Biology MCQs

31. Mature females lay eggs and birds develop with the formation of four embryonic membranes known as__
[A] chorion
[B] amnion
[C] allantoin
[D] All of the above

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32. Langerhans cells are present in which of the following?
[A] Stratum Spinosum
[B] Stratum Basale
[C] Stratum Granulosum
[D] Stratum Corneum

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33. Which structure is part of the tectum?
[A] superior colliculus
[B] periaqueductal grey
[C] substantia nigra
[D] red nucleus

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34. The outermost layer of the ovary is made up of ___.
[A] simple cuboidal cells
[B] stereocilia
[C] stroma
[D] cilia

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35. The population of the vagina with semen during coitus is called __.
[A] Insemination
[B] Outsemination
[C] Copulation
[D] Fertilization

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36. Which of the following is called Mendel’s first law of inheritance?
[A] Law of Dominance
[B] Law of Segregation
[C] Law of Independent Assortment
[D] All of the above

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37. Mycorrhiza is a symbiotic association between
[A] Bacteria and fungi
[B] Algae and fungi
[C] Fungi and roots of higher plants
[D] Blue green algae and roots of higher plants

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38. 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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39. ____ is the cell organelle, in which the biochemical processes of respiration and energy production occur:
[A] Ribosomes
[B] Mitochondria
[C] Nucleus
[D] Chloroplast

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40. What is Blood?
[A] Muscular tissue
[B] Epithelial tissue
[C] Reproductive tissue
[D] Connective tissue

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