Anatomy & Physiology › Section Y · Reproduction and development › Topic Y.8
Patterns of inheritance
Each child inherits one of every chromosome pair from each genetic parent, and which copy arrives is a matter of chance. A few simple rules of probability, first worked out by Gregor Mendel, let you predict the odds for single-gene traits and disorders.
In this topic
- Genes, alleles and chromosomes
- Dominant, recessive and the notation
- Mendel's two principles
- Punnett squares and probability
- Worked example: two carriers of cystic fibrosis
- Autosomal dominant and recessive disorders
- X-linked inheritance
- Worked example: hemophilia in a family
- Beyond simple dominance
- Mutations and chromosome number
- Common mistakes to avoid
- Key takeaways
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