3. In an experiment on sweet pea (Lathyrus odoratus), a cross was made between two plants, one having purple flowers and the other having white flowers. In F1, all had purple flowers and in F2, it was a modified Mendelian ratio:(a) what ratio do you expect in F2? (b) what is this phenomenon termed as? (c) what are such genes known as?
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- A white flower Sweet Potato(CCpp) is crossed with another white flowered Sweet Potato(ccPP). In the F1 generation, Purple flowered Sweet potato plants are formed.
- When these plants are subjected to self pollination, in the F2 generation, 9 plants with purple flowers and 7 plants with white flowers are formed. It is complementary genes.
When these plants are subjected to self pollination, in the F2 generation, 9 plants with purple flowers and 7 plants with white flowers are formed. It is complementary genes.So, the correct option is ‘Complementary genes’.
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