↵the genotype of green stemmed tomato plant is denoted as GG and that of purple stemmed tomato plant has gg. When these two are crossed:

Which colour of stem would you expect in F1 progeny?

Give the percentage of purple stemmed plant that are self-pollinated.

In what ratio would you find the genotypes GG and Gg in the F2 progeny?

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Solution

1. Progeny will have green stem colour.
2. 25%.
3. 1:2:1 where 1 progeny have GG genotype, 2 will have Gg genotype and 1 will have gg genotype.

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1. Progeny will have green stem colour. 2. 25%. 3. 1:2:1 where 1 progeny have GG genotype, 2 will have Gg genotype and 1 will have gg genotype.

1. Progeny will have green stem colour.
2. 25%.
3. 1:2:1 where 1 progeny have GG genotype, 2 will have Gg genotype and 1 will have gg genotype.