Biology MCQs

31. Name a disease of plant in which dark to light brown rot forms around wounded plant tissue?
[A] Gray Mold
[B] Citrus Canker
[C] Spider Mites
[D] None of the above

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32. Which one disease of wheat causes a restriction in the export of wheat from India?
[A] Powdery mildew
[B] Karnal bunt
[C] Black rust
[D] Flag smut

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33. Which one is NOT true about sponges?

[A] They are multicellular
[B] They are autotrophs
[C] They are eukaryotes
[D] They are the simplest animals lacking tissue and organs

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34. What is an abnormal thickening of stratum Corneum called?
[A] Dandruff
[B] Callus
[C] Comedo
[D] Abrasion

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35. Which of the following is the most branched cranial nerve?
[A] Facial nerve
[B] Trigeminal nerve
[C] Vagus nerve
[D] Both 1 and 3

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36. The condition related to Myopia is:
[A] Monocular vision
[B] Unable to see the nearer object clearly
[C] Unable to see the distant object clearly
[D] None of the above

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37. Which of the following organ is devoid of gland?
[A] Vulva
[B] Oviduct
[C] Uterus
[D] Vagina

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38. Which of the following cells of the testis secrete testosterone?
[A] sertoli cells
[B] cells of germinal epithelium
[C] cells of Leydig or interstitial cells
[D] secondary spermatocytes

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39. One whose phenotype is influenced by more than one gene is called __.
[A] Oncogenic Trait
[B] Monogenic trait
[C] Polygenic trait
[D] None of these

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40. Which of the following hydrocarbons is produced by oil and fat feedstock?
[A] Bio-ethers
[B] Green Diesel
[C] Re-formulated gasoline
[D] All of the above

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