In tomato plants, the allele for a green stem (AAA) is dominant to the allele for a purple stem (aaa). Two heterozygous green-stemmed plants (AaAaAa) are crossed. The table below shows the number of green-stemmed and purple-stemmed offspring produced from this cross:
| Phenotype | Number of offspring |
|---|---|
| Green stem | 1347 |
| Purple stem | 449 |
Calculate the number of these offspring that is most likely to be heterozygous.
66 exam-style questions on Edexcel IGCSE Biology Inheritance. Each one has a worked solution and a mark scheme showing where the marks go.