Spec 8461
Revise AQA GCSE Biology 6.1.2 Meiosis with the question bank, lessons, revision guides, and flashcards.
Students should be able to explain how meiosis halves the number of chromosomes in gametes and fertilisation restores the full number of chromosomes. • Gametes join at fertilisation to restore the normal number of chromosomes. The new cell divides by mitosis. The number of cells increases. As the embryo develops cells differentiate.