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Questions below are based on the following information. A scientist who is interested in genetics cross-pollinates some foxglove plants to investigate what color the flowers of their offspring will be. She draws a Punnett square to display all the possible combinations of alleles when two hybrid foxglove plants are crossed to help her determine the possible genotypes of the offspring. P represents the dominant allele for purple flowers, and p represents the recessive allele for white flowers. The genotype of one parent plant is shown on the top of the square, and the other parent’s genotype is shown on the left of the square. The genotypes of the offspring are shown in the boxes. The Punnett square is shown here:
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