2 Criticalvalues p=0.10 p 0.05 p 0.01 p 0.001 DF 2 3 2.71 4.60 6.25 3.84 5.99 7.

Question

2 Criticalvalues p=0.10 p 0.05 p 0.01 p 0.001 DF 2 3 2.71 4.60 6.25 3.84 5.99 7.82 6.64 9.21 11.34 10.83 13.82 16.27 1. Dr. Sisko studies the flowering plant Mimulus cardinalis in an experimental population of size 1,000 that grows in acidic soil. The color of the flower in this plant is determined by a single locus with two co-dominant alleles Ai and A2. Laboratory observations show that seeds from red and pink flower plants survive with equal success in the acidic soil but seeds from plants with white flowers (A2A2) have decreased fitness with a selection coefficient of s -0.2 Phenotype # plants (adults) Fitness Red (AAt) Pink C,A)Whi CAA) 200 300 500 a) Is Ai dominant, recessive or semidominant for fitness? Why? b) Calculate the genotype, allele frequencies and average fitness of the population (w-bar) in the next generation before and after selection.

Explanation / Answer

A) A1 is a semidominant allele for fitness. As it's physical fitness =1 & has codominant allele A2 for single loci.

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