In sweet pea plants, an allele for purple flowers. (P) is dominanl when paired with a recessive allele for red flowers (p). An allele for Jang pollen grains (L) is dominant when paired with a recessive allele for round pollen grains (L). Bateson and Punnett crossed a plant having purple flowers and long pollen grains with one having white flowers and round pollen grains. All F1 offspring have purple flowers and long pollen grains. Among the F2 generation, the researchers observed the following phenotypes:
296 purple flowers/long pollen grains
19 purple /lower/ round pollen grains
27 red flowers/long pollen grains
85 red flowers/round pollen grains
What is the best explanation for these results?
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