During a cross involving true breeding red flower and tree breeding white flower the Snapdragon plants the F1 progeny did not show any of the parental trades while there appeared in F2 progeny explain the mechanism used in Punnet square
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Please find below the solution to the asked query
Mechanism is known as incomplete dominance. In incomplete dominance, F1 generation has a phenotype that does not resemble either of the two parents, but is a mixture of the two.
Please find below the solution to the asked query
Mechanism is known as incomplete dominance. In incomplete dominance, F1 generation has a phenotype that does not resemble either of the two parents, but is a mixture of the two.
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Example − Flower colour in dog flower (snapdragon), where:
- RR − Red flowers
- rr − White flowers
- Rr − Pink flowers
- Here, genotypic ratio remains same as in Mendelian crosses, but phenotypic ratio changes since complete dominance is not shown by R (hence, incomplete dominance).
- Phenotypic Ratio − 1:2:1 that denotes Red: Pink: White
- Genotypic Ratio − 1:2:1 that denotes RR: Rr: rr
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