The inheritance of sex chromosomes determines the biological sex of an offspring.
Explain how sex chromosomes determine whether a human is born male or female, and state which parent's gamete determines this sex.
Cells divide by two main processes: mitosis and meiosis. Describe four differences between the daughter cells produced by meiosis and those produced by mitosis.
66 exam-style questions on Edexcel IGCSE Biology Inheritance. Each one has a worked solution and a mark scheme showing where the marks go.