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Concept Maps

Principles of Inheritance and Variation — Concept Maps

ICSE · Class 12 · Biology

4 concept maps of Principles of Inheritance and Variation for ICSE Class 12 Biology, each also written out as a text outline.

130 questions50 flashcards5 formulas & key relations5 concepts

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A detailed diagram illustrating the process of crossing over, where genetic material is exchanged between non-sister chromatids of homologous chromosomes during Pachytene of Prophase I.
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4 Concept Maps

Mendel's Laws — Cross Results

Mendel's Laws — Cross Results

The map in words

  • P Generation
    • F1 - All Tall Tt
      • F1 x F1
        • F2 Monohybrid
          • D1
  • 1
  • P - RRYY x rryy
    • F1 - RrYy
      • F1 x F1
        • D2
  • 9
  • 3

ABO Blood Group Inheritance

ABO Blood Group Inheritance

The map in words

  • ABO Blood Group Alleles
    • IA - Blood Group A
      • IA IA = Group A
      • IA i = Group A
      • E
    • IB - Blood Group B
      • IB IB = Group B
      • IB i = Group B
    • i - Blood Group O
      • D1
  • Codominance
  • Recessive

Dihybrid Cross — F2 Ratio

Dihybrid Cross — F2 Ratio

The map in words

  • P: RRYY x rryy
    • F1: RrYy - all Round Yellow
      • F1 x F1: RrYy x RrYy
        • F2 - 16 combinations
          • 9 R_Y_ Round Yellow
          • 3 R_yy Round Green
          • 3 rrY_ Wrinkled Yellow
          • 1 rryy Wrinkled Green

Genetics: heredity, variation, inheritance patterns, and chromosomal basis of inheritance

Genetics: heredity, variation, inheritance patterns, and chromosomal basis of inheritance

The map in words

  • Genetics: heredity, variation, inheritance patterns, and chromosomal basis of inheritance
    • Heredity and variation
    • Mendel and his experiments
    • Mendelian laws
    • Basic genetic terms
    • Other inheritance patterns
    • Chromosomal theory of inheritance
    • Linkage and crossing over
    • Sex determination and sex-linked inheritance

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Frequently Asked Questions

What are the important topics in Principles of Inheritance and Variation for ICSE Class 12 Biology?
Key topics in Principles of Inheritance and Variation include Heredity, Variation, and Mendel’s Work, Mendel’s Laws and Basic Crosses, Deviations from Mendelism: Incomplete Dominance, Co-dominance, Pleiotropy, and Multiple Alleles, Chromosomal Theory, Linkage, and Crossing Over. Study these first, then practise questions on each for the ICSE Class 12 board exam.
What do the concept maps for Principles of Inheritance and Variation show?
The 4 maps show how the ideas in Principles of Inheritance and Variation connect: Mendel's Laws — Cross Results; ABO Blood Group Inheritance. Each map is also written out as an outline on this page.
How should I revise Principles of Inheritance and Variation for the ICSE Class 12 board exam?
Learn the core ideas first, then work through the 130 practice questions on Principles of Inheritance and Variation. Revise 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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