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BIOLOGY MCQs

Total Questions : 1207 | Page 116 of 121 pages
Question 1151. . Placenta is the structure formed
  1.    by the union of foetal and uterine tissue
  2.    by foetus only
  3.    by fusion of germ layers
  4.    None of these
 Discuss Question
Answer: Option A. -> by the union of foetal and uterine tissue
Question 1152. . O2 released in the process of photosynthesis comes from
  1.    CO2
  2.    water
  3.    sugar
  4.    pyruvic acid
 Discuss Question
Answer: Option B. -> water
Question 1153. . Plants hormone that induces cell division is
  1.    auxins
  2.    gibberellins
  3.    kinins
  4.    domins
 Discuss Question
Answer: Option C. -> kinins
Question 1154. .  Neurospora is used as genetic material because
  1.    it has short life cycle of 10 days
  2.    the product of single meiosis can be easily analysed
  3.    meiotic products are linearly arranged in the form of ordered tetrads
  4.    is a diploid fungus
 Discuss Question
Answer: Option A. -> it has short life cycle of 10 days
Question 1155. . Phloem is a tissue found in
  1.    reproductive organs of animals
  2.    plants
  3.    insects
  4.    mammals
 Discuss Question
Answer: Option B. -> plants
Question 1156. . N2 content is kept constant in the biosphere due to
  1.    N2 fixation
  2.    industrial pollution
  3.    nitrogen cycle
  4.    absorption of N2
 Discuss Question
Answer: Option C. -> nitrogen cycle
Question 1157. . out of proteins, lipids and carbohydrates present in a cell membrane, what is true?
  1.    Lipids are maximum
  2.    Carbohydrates are minimum
  3.    Carbohydrates are maximum
  4.    All three are in equal proportion
 Discuss Question
Answer: Option B. -> Carbohydrates are minimum
Question 1158. . Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?
  1.    Order
  2.    Subspecies
  3.    Class
  4.    Genus
 Discuss Question
Answer: Option C. -> Class
Question 1159. . Potato is a modified form (outgrowth) of
  1.    root
  2.    stem
  3.    fruit
  4.    leaf
 Discuss Question
Answer: Option B. -> stem
Question 1160. . Myopia is connected with
  1.    ears
  2.    eyes
  3.    lungs
  4.    None of these
 Discuss Question
Answer: Option B. -> eyes

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