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Concept Maps
Principles of Inheritance and Variation — Concept Maps
Punjab Board · Class 12 · Biology
3 concept maps of Principles of Inheritance and Variation for Punjab Board Class 12 Biology, each also written out as a text outline.
42 questions31 flashcards5 concepts
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3 Concept Maps
Chapter Overview – Principles of Inheritance and Variation
The map in words
- Principles of Inheritance and Variation
- Mendel's Experiments
- Garden Pea Plant
- 7 Contrasting Traits
- True Breeding Lines
- Statistical Analysis
- Mendel's Laws
- Law of Dominance
- Dominant Allele
- Recessive Allele
- F1 Resembles One Parent
- Law of Segregation
- Alleles Separate in Gametes
- 3 to 1 Ratio at F2
- Purity of Gametes
- Law of Independent Assortment
- Two Gene Pairs
- 9 to 3 to 3 to 1 Ratio
- Dihybrid Cross
- Law of Dominance
- Extensions of Mendelism
- Incomplete Dominance
- Snapdragon Example
- 1 to 2 to 1 F2 Ratio
- Co-dominance
- ABO Blood Groups
- IA IB Alleles
- Multiple Alleles
- Three or More Alleles
- Polygenic Inheritance
- Skin Colour
- Human Height
- Pleiotropy
- Single Gene Multiple Effects
- Phenylketonuria
- Incomplete Dominance
- Chromosomal Theory
- Sutton and Boveri
- Parallel Behaviour
- Morgan and Drosophila
- Linkage and Recombination
- Genetic Maps
- Sex Determination
- XO Type Grasshopper
- XY Type Humans and Drosophila
- ZW Type Birds
- Haplodiploidy Honey Bee
- Mutation
- Point Mutation
- Sickle Cell Anaemia
- Chromosomal Aberrations
- Mutagens
- Genetic Disorders
- Mendelian Disorders
- Colour Blindness
- Haemophilia
- Sickle Cell Anaemia
- Phenylketonuria
- Thalassemia
- Chromosomal Disorders
- Downs Syndrome Trisomy 21
- Klinefelters Syndrome 47 XXY
- Turners Syndrome 45 XO
- Mendelian Disorders
- Mendel's Experiments
Mendel's experimental methodology: Sequential steps from plant selection through statistical analysis to formulate laws of inheritance
The map in words
- Select Pea Plant
- Choose True-Breeding Lines
- Perform Cross-Pollination
- Collect F1 Seeds
- Self-Pollinate F1
- Analyze F2 Generation
- Repeat for Multiple Generations
- Statistical Analysis
- Propose Laws of Inheritance
- Statistical Analysis
- Repeat for Multiple Generations
- Analyze F2 Generation
- Self-Pollinate F1
- Collect F1 Seeds
- Perform Cross-Pollination
- Choose True-Breeding Lines
Monohybrid cross showing parental cross through F1 and F2 generations with both genotypic and phenotypic outcomes
The map in words
- P: TT tall × tt dwarf
- Gametes: T and t
- F1: All Tt
- Phenotype: All Tall
- Self-pollinate: F1: Tt × Tt
- Gametes: T and t 1:1
- F2 Offspring
- 1 TT : 2 Tt : 1 tt
- 3 Tall : 1 Dwarf
- Phenotypic Ratio: 3:1
- 3 Tall : 1 Dwarf
- 1 TT : 2 Tt : 1 tt
- F2 Offspring
- Gametes: T and t 1:1
- F1: All Tt
- Gametes: T and t
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Explore DiagramsFrequently Asked Questions
What are the important topics in Principles of Inheritance and Variation for Punjab Board Class 12 Biology?
Key topics in Principles of Inheritance and Variation include Mendel's Experiments and Laws of Inheritance, Inheritance of One Gene – Monohybrid Cross, Inheritance of Two Genes – Dihybrid Cross and Law of Independent Assortment, Chromosomal Theory of Inheritance, Linkage and Recombination. Study these first, then practise questions on each for the Punjab Board Class 12 board exam.
What do the concept maps for Principles of Inheritance and Variation show?
The 3 maps show how the ideas in Principles of Inheritance and Variation connect: Chapter Overview – Principles of Inheritance and Variation; Mendel's experimental methodology: Sequential steps from plant selection through statistical analysis to formulate laws of inheritance. Each map is also written out as an outline on this page.
How should I revise Principles of Inheritance and Variation for the Punjab Board Class 12 board exam?
Learn the core ideas first, then work through the 42 practice questions on Principles of Inheritance and Variation. Revise definitions regularly and use flashcards for quick recall before the exam.
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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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