1. T. Trimpe 2008 http://sciencespot.net/

2. 1. Predict the offspring from a cross between a purebred pea plant with purple flowers and a pea plant with white flowers. Use P for purple and p for white. (a) Give the genotypes. Purebred Purple = ____ White = ____ (b) Create a Punnett square to determine the genotypes for the offspring. (c) What is the probability that a plant would have purple flowers? _______ % (d) What is the probability that a plant would have white flowers? _______ % 2. If you crossed two hybrid plants with purple flowers and planted 200 of the seeds, how many would you expect to have with white flowers. Create a Punnett square to support your answer.

3. 1. Predict the offspring from a cross between a purebred pea plant with purple flowers and a pea plant with white flowers. Use P for purple and p for white. (a) Give the genotypes. Purebred Purple = ____ White = ____ (b) Create a Punnett square to determine the genotypes for the offspring. (c) What is the probability that a plant would have purple flowers? (d) What is the probability that a plant would have white flowers? P P pp Pp 0% 100% PPpp

4. 2. If you crossed two hybrid plants with purple flowers and planted 200 of the seeds, how many would you expect to have with white flowers. Create a Punnett square to support your answer. P p Pp PPPp pp You would expect to see white flowers on 25% of the plants, which would be 50 plants.