CBSE Class 12-science Answered
For flower colour in pea, the allele for purple flower (P) is dominant over the allele for white flower (p). A purple-flowered plant therefore could be of genotype PP or Pp. What genetic cross would you make to determine the genotype of a purple-flowered plant? Explain how your cross gives you the correct genotype of the purple-flowered plant.
Asked by Topperlearning User | 25 Jun, 2014, 12:22: PM
Expert Answer
The genotype of a purple-flowered plant can be determined by conducting a test cross.
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If the F1 generation produces all purple flowers, the parent would be homozygous dominant, i.e. PP.
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If the F1 generation produces purple and white flowers in a 1:1 ratio, the parent would be heterozygous, i.e. Pp.
Answered by | 25 Jun, 2014, 02:22: PM
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