File Details:

{"file_name":"bihar-board-class-12-biology-2015.pdf","subject":"Biology","board":"Bihar Board","class":"12","year":"2015"}

Questions:

  1. Write a brief comment about asexual reproduction in organisms.
  2. Explain the menstrual cycle and menstruation cycle.
  3. Describe Mendel's laws based on monohybrid cross.
  4. Differentiate between DNA and RNA.
  5. Write a short note on chemical evolution.
  6. Discuss briefly how diseases spread.
  7. Provide a short description of poultry farm management.
  8. What is plasmid? Explain its structure and utility.
  9. Discuss the benefits of transgenic animals.
  10. Write briefly about the forms of total population.
  11. Illustrate and explain hydrophytes, xerophytes, and mesophytes with examples.
  12. Describe gastrulation and the formation of germ layers with diagrams or explain human sperm structure with a labeled diagram.
  13. Define linkage and linkage groups. Discuss the effect and importance of linkage or explain the concept and components of the ecosystem.
  14. Explain micropropagation and its techniques with illustrations or suggest measures to improve milk production and quality in dairy farming.
  15. Define conservation and describe methods for conserving biological resources or provide brief comments on restriction enzyme and cholera including causes, symptoms, and control.
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