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Revision Notes

Enhancement of Food Production

Maharashtra Board · Class 12 · Biology

Quick revision notes for Enhancement of Food Production — Maharashtra Board Class 12 Biology. Key concepts, formulas, and definitions for last-minute revision.

44 questions25 flashcards5 concepts

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Key Topics to Revise

1

Plant Breeding and Crop Improvement

  • Plant breeding is the purposeful manipulation of plant heredity to create superior crop varieties with improved yield, quality, and resistance
  • Green Revolution (1960s) involved developing high-yielding, semi-dwarf varieties of wheat and rice using scientific breeding techniques
  • Hybridization involves crossing two genetically different parents to combine desirable traits from both
2

Tissue Culture and Micropropagation

  • Tissue culture involves growing isolated plant cells, tissues, or organs in sterile nutrient medium under controlled conditions
  • Based on totipotency principle - ability of plant cells to regenerate complete plants
  • MS (Murashige and Skoog) medium contains minerals, carbohydrates, proteins, vitamins, growth hormones, and agar
3

Single Cell Protein (SCP) and Biofortification

  • SCP refers to edible protein extracted from pure microbial cultures or dried cell biomass
  • Microorganisms used: Fungi (Aspergillus niger), Yeast (Saccharomyces cerevisiae), Algae (Spirulina, Chlorella), Bacteria (Methylophilus methylotrophus)
  • Grown on inexpensive substrates: agricultural waste, wood shavings, molasses, even human and animal waste
4

Animal Husbandry and Management

  • Animal husbandry involves scientific breeding and management of livestock for maximum productivity
  • Animal breeding types: Inbreeding (closely related individuals for 4-6 generations) and Outbreeding (unrelated individuals)
  • Crossbreeding produces superior hybrids (e.g., Hisardale sheep from Bikaneri × Marino cross)

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Full Notes

Key Concepts

Scientific manipulation of plant heredityProcess involving collection of variabilityIn vitro cultivation of plant cellsScientific management of livestock including cattleEdible protein extracted from microbial biomass

Frequently Asked Questions

What are the important topics in Enhancement of Food Production for Maharashtra Board Class 12 Biology?
Enhancement of Food Production covers several key topics that are frequently asked in Maharashtra Board Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Enhancement of Food Production — Maharashtra Board Class 12 Biology?
Understand the core concepts first, then work through the 44 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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