GS Biology Questions and Answers

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Q151
Movements due to light are shown by
  • A flowering plants
  • B lower plants
  • C all land plants
  • D all the plants
Answer: Option A
Q152
Plants are killed in winter by frost
  • A because of desiccation and mechanical damage to the tissues
  • B because no photosynthesis takes place at such low temperature
  • C because respiration ceases at such low temperature
  • D because there is no transpiration
Answer: Option A
Q153
Pollination by wind is called
  • A anemophily
  • B hydrophily
  • C zoophily
  • D entomophily
Answer: Option A
Q154
One of the following is most suitable for study of mutations
  • A Haploids
  • B Diploids
  • C Tetraploids
  • D Polyploid
Answer: Option A
Q155
Plants that grow under average temperature and moisture are called
  • A halophytes
  • B hydrophytes
  • C mesophytes
  • D xerophytes
Answer: Option C
Q156
Pollen grains in plants are produced in
  • A roots
  • B leaves
  • C flower
  • D stem
Answer: Option C
Q157
Organic Substances which, in very small amounts, control growth and development called
  • A vitamins
  • B hormones
  • C enzymes
  • D None of the above
Answer: Option B
Q158
Mumps is a disease caused by
  • A fungus
  • B bacterium
  • C virus
  • D None of these
Answer: Option C
Q159
Oxyreductases, transferases, hydrolases, lyases, isomerases and ligases are all classes of
  • A hormones
  • B enzymes
  • C proteins
  • D vitamins
Answer: Option B
Q160
On which of the following plants did Gregor Mendal perform his classical experiment?
  • A Gram
  • B Maize
  • C Pea
  • D Wheat
Answer: Option C
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