Class XI

Traditional breeding methods are
  1. selective breeding
  2. cell fusion
  3. mutation breeding
  4. all of above
Due to irritants in cigarettes, many minute alveoli coalesce to form
  1. lumps of cells
  2. blood clot
  3. enlarged alveoli
  4. enlarged alveoli
Disease arising due to vitamin deficiency is called
  1. scurvy
  2. beriberi
  3. rickets
  4. kwashiorkor
Cell within a circular biconcave shape is called as
  1. mitochondrion
  2. chromatin
  3. centrioles
  4. hemoglobin
 First photosynthesizing organs of a germinating seed are
  1. cotyledons
  2. plumule itself
  3. first foliage leaves
  4. radical
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