TEST Hardy Weinberg Equilibrium (1).

Using the Hardy Weinberg Equilibrium Consider a population of flowers. Let's say that the A gene determines petal color, and that there is incomplete dominance. AA individuals have red flowers, aa individuals have white flowers, and Aa individuals have pink flowers. There are 200 individuals with red flowers, 400 with white flowers and 400 with pink flowers. Does the population appear to be at Hardy-Weinberg equilibrium with respect to the A gene? a. (5 points) Determine the values of p and q (Hint: remember that each gene has 2 alleles) P = AA + 50% (Aa) = ( 200 + 5% x 400) / 1000 = 0.4 p = 0.4 q = 0.6 b. (1 point) Write the null hypothesis for this exercise The population of flowers is in the Hardy Weinberg equilibrium when the A gene determines the color of the petals. c. (10 points) Complete the following table Phenotype Observed (o) Expected (e) o - e (o – e)2 /e Red .00 White .44 Pink .33 = 27.77 d. (2 point) The degree of freedom d = 1. Use the table below to find the critical Chi square 3 – (1+1) e. (1 point) calc. or c f. (1 point) Circle the correct answer: a. I accept the null hypothesis b. I reject the null hypothesis