Class XI

Hormonal control involves
  1. chemical substances
  2. electrical signals
  3. mechanical signal
  4. photochemical energy
Growth of pollen tube is controlled by the
  1. vegetative nucleus
  2. generative nucleus
  3. tube nucleus
  4. pollen grain
Technique which uses homologous recombination to delete, add or change a gene is known as
  1. gene bundling
  2. gene linking
  3. gene targeting
  4. gene replication
Holozoic nutrition is a type of
  1. autotrophic nutrition
  2. photoautotrophic nutrition
  3. tropical nutrition
  4. heterotrophic nutrition
Between liver and gut wall, capillaries join to form
  1. hepatic vein
  2. hepatic portal vein
  3. iliac veins
  4. renal veins
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