Inheritance — Edexcel International GCSE Biology
Alleles, dominant and recessive, codominance, genetic diagrams, family pedigrees, probability and how sex is inherited.
Revision notes
6 short notes, in the order of the specification.
- Alleles and genetic terms
- CodominanceBiology only
- Polygenic inheritance
- Monohybrid inheritance and genetic diagrams
- Family pedigrees and probabilities
- Sex determination
Exam questions
7 exam-style questions (20 marks), each with its mark scheme.
Answer the questionsFlashcards
13 cards: flip them, mark what you knew, and practise the rest.
Practise the cardsMind map
The whole of reproduction and inheritance on one page, so you can see where this subtopic fits.
Open the mind mapPrint it
Free PDFs to print or save.