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A snapdragon plant homozygous for red fl...

A snapdragon plant homozygous for red flower when crossed with a white flower plant of the same species produced pink flowers in F generation
(a) What is this phenotypic expression called?
(b) Work out the cross to show the `F_2` generation when `F_1` was self pollinated. Give the phenotypic and genotypic ratios of `F_2` generation.
(c) How do you compare the `F_2` phenotypic and genotypic ratios with those of Mendelian monohybrid `F_2` ratios?

Text Solution

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If snapdragon plant with red flowers was crossed with a plant containing white flowers, the `F_1` generation produced pink flowers. In this case, the `F_1` phenotype is intermediate to the parental phenotypes, because some pigment is produced in the `F_1` flowers and neither the red nor the white colour is dominant. This condition is known as incomplete dominance.
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