Inheritance & EvolutionHigh Exam FrequencyAQAEdexcelOCRWJEC
Inherited Disorders
Genetic disorders, family pedigrees, and probability calculations
What you'll cover
- Polydactyly and cystic fibrosis
- Embryo screening and genetic counselling
- Family pedigree analysis
- Probability calculations for inheritance
Study this topic
1Notes2Notes3Diagram4How It Works5Definitions6Misconceptions7Memory Aid8Exam Focus9Summary10Exam Tips
Two Inherited Disorders for AQA
Genetic Testing and Ethical Issues
Visual: Inherited Disorders
How It Works: Inheriting CF and Polydactyly
Key Definitions
Common Misconceptions
Memory Aids
Exam Focus
Knowledge Organiser
Exam Tips: Inherited Disorders
Sample Flashcards
What is the effect of a dominant allele on polydactyly?
Extra fingers or toes; Can be surgically corrected; Not usually harmful
What is the effect of a recessive allele on cystic fibrosis?
Thick, sticky mucus in lungs and digestive system; Difficulty breathing, frequent infections
Sample Questions
What is an inherited disorder?
Describe how genetic screening can be used to detect inherited disorders.
25
exam-style questions
20
revision flashcards
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