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 F 1 offspring have purple flowers and long pollen grains. Among the F 2 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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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332
BuyFind

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332

Solutions

Chapter 13, Problem 8GP
Textbook Problem

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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