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MCQs

Total Questions : 61 | Page 6 of 7 pages
Question 51. . Triticale, the first man made cereal is an example of
  1.    artificial allopolyploidy
  2.    artificial autopolyploidy
  3.    man made crossing
  4.    artificial evolution
 Discuss Question
Answer: Option A. -> artificial allopolyploidy
Question 52. . The major source of sugar in the world is
  1.    watermelon
  2.    beetroot
  3.    sugarcane
  4.    dates
 Discuss Question
Answer: Option C. -> sugarcane
Question 53. . Mycorrhizae are symbiotic associations between
  1.    algae and fungi
  2.    root and fungi
  3.    bacteria and root
  4.    bacteria and fungi
 Discuss Question
Answer: Option B. -> root and fungi
Question 54. . The proteins that forms the walls of the microtubules are
  1.    actin
  2.    tubulin
  3.    pectin
  4.    hydroxyproline
 Discuss Question
Answer: Option B. -> tubulin
Question 55. . The colour of flower is due to the presence of
  1.    chlorophyll
  2.    xanthophylls
  3.    florigen
  4.    chromoplast or anthocyanin
 Discuss Question
Answer: Option D. -> chromoplast or anthocyanin
Question 56. . What are the names of the two genders of haploid yeast cells?
  1.    A and Alpha
  2.    M and F
  3.    Y(a)and Y(b)
  4.    None of these
 Discuss Question
Answer: Option A. -> A and Alpha
Question 57. . The volume of O2 liberated in photosynthesis has which of the following ratio to CO2?
  1.    1:1
  2.    2:1
  3.    1:2
  4.    3:1
 Discuss Question
Answer: Option A. -> 1:1
Question 58. . Neurospora is used as an experimental tool in
  1.    ecology
  2.    cytology
  3.    genetics
  4.    physiology
 Discuss Question
Answer: Option C. -> genetics
Question 59. . Rice can grow in water submerged soil because the plants
  1.    have spongy roots
  2.    can oxidize the micro-environment around their roots and thus able to absorb oxygen
  3.    are adapted to enable roots to ward off toxic products
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Question 60. . Who among the following coined the term Biotechnology?
  1.    Karl Ereky
  2.    James Clarke
  3.    Paul Terasaky
  4.    Clarke and Sommer
 Discuss Question
Answer: Option A. -> Karl Ereky

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