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Principles of Inheritance
Biology · Chapter 5 · Unit 2: Genetics and Evolution
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Your path through this chapter
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30 cards for quick recall of key terms and facts.
Review the cards Step 3: Not startedPractice
63 board-style questions with instant checks: Multiple choice 24, Short answer 17, Numerical 11, Assertion and reason 4.
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Short and long chapter tests in board pattern, with results and analysis.
Step 5: Not started- Chapter test (long) — Principles of Inheritance · 40 marks · 100 min
- Chapter test (short) — Principles of Inheritance · 20 marks · 50 min
Topics 6
- Heredity and variation; genetic terms (homologous chromosomes, autosomes, sex chromosomes, alleles, genotype, phenotype); Mendel's principles, reasons for his success
- Monohybrid and dihybrid crosses; back cross and test cross using Punnett squares
- Deviations from Mendelism: incomplete dominance (snapdragon), codominance and multiple alleles (ABO blood groups)
- Polygenic inheritance (human skin colour); pleiotropy (phenylketonuria, starch synthesis in pea)
- Pedigree analysis in human genetics
- Chromosomal theory of inheritance; linkage and crossing over