CAPE Biology Unit 1 · 2007 · Paper 1 · Question Q25

The following diagram shows the formation of gametes in a carpel of a flowering plant. Which of the following correctly identifies the number of sets of chromosomes present at each numbered stage?

1. (A)I: 2n | II: 2n | III: n | IV: 2n
2. (B)I: 2n | II: 2n | III: 2n | IV: 2n
3. (C)I: n | II: 2n | III: 2n | IV: n
4. (D)I: 2n | II: n | III: n | IV: 2n

This question uses a figure or table from the paper — you'll see it when you practise.