Biology 12th class Question Bank

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                                            Sheet 1





  1. What do you mean by spermetogenesis ? explain the whole process of Spermetogenesis .
  2. Describe oogenesis .
  3. Explain the process of megasporogenesis ?               
  4. Write about the structure of pollen .
  5. What is sporopollenin ?
  6. What do you mean by bio fortification ?
  7.  WIDAL test is used for which disease , explain ?
  8. What do you mean by drugs ? Explain any two type of drugs .
  9. Write the definition of pollution ?
  10. What is SCP ?
  11. Write difference between inbreeding and out breeding ?
  12. What is Asexual type of Reproduction ?
  13. Explain food Chain ?
  14. What is  the difference between convergent and divergent evolution ?
  15. Explain secondary treatment of sewage purification ?


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