T Trimpe 2008 http sciencespot net 1 Predict

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

1. Predict the offspring from a cross between a purebred tall pea plant and a hybrid tall plant. Use T for tall and t for short. (a) Give the genotypes. Purebred Tall = ____ Hybrid Tall = ____ (b) Create a Punnett square to determine the genotypes for the offspring. (c) What is the probability that a plant would be tall? _______ % (d) What is the probability that a plant would be short? _______ % 2. Predict the offspring from a cross between two hybrid tall pea plants. (a) Give the genotype for a hybrid tall plant. ______ (b) Create a Punnett square to determine the genotypes for the offspring. (c) What is the probability that a plant would be tall? _____ % (d) What is the probability that a plant would be short? _____ % (e) If you were to plant 100 seeds from this cross, how many would you expect to be tall?

1. Predict the offspring from a cross between a purebred tall pea plant and a hybrid tall plant. Use T for tall and t for short. (a) Give the genotypes. TT Purebred Tall = ____ Tt Hybrid Tall = ____ (b) Create a Punnett square to determine the genotypes for the offspring. T t T TT Tt (c) What is the probability that a plant would be tall? (d) What is the probability that a plant would be short? 100% 0%

2. Predict the offspring from a cross between two hybrid tall pea plants. Tt (a) Give the genotype for a hybrid tall plant. ______ (b) Create a Punnett square to determine the genotypes for the offspring. T t T TT Tt Tt tt t (c) What is the probability that a plant would be tall? (d) What is the probability that a plant would be short? 75% 25% (e) If you were to plant 100 seeds from this cross, how many would you expect to be tall? 25% of 100 = 25 plants