Scientists studied two different types of cell division in the same species of beetle.
| Division | Number of cells produced from one parent cell | Number of chromosomes in each cell |
|---|---|---|
| X | 2 | 32 |
| Y | 4 | 16 |
Which division produced gametes?
Explain your answer.
Two gametes from this species fuse at fertilisation.
How many chromosomes will the zygote contain?
Explain your answer.
62 exam-style questions on AQA GCSE Biology 6.1 Reproduction, covering 6.1.1 Sexual and asexual reproduction, 6.1.2 Meiosis, 6.1.3 Advantages and disadvantages of sexual and asexual reproduction, 6.1.4 DNA and the genome, 6.1.5 DNA structure, 6.1.6 Genetic inheritance, 6.1.7 Inherited disorders, and 6.1.8 Sex determination. Each one has a worked solution and a mark scheme showing where the marks go.