Discussion:
Population Genetics
1.In plants, flower color is controlled by incomplete dominance, where red and blue are the two homozygous conditions and purple indicates heterozygous. An initial population contains 14 red, 70 purple, and 24 blue individuals. Give exact allele and expected genotype frequencies for this population. Now assume that the heterozygous condition confers frost resistance to these plants. After a cold snap, 50% of the homozygous (as in 50% of the red and 50% of the blue) and 10% of the heterozygous plants die. Determine the new exact allele and expected genotype frequencies.
2.In a population of chickens, 23% carry a recessive allele for red legs but only 7% express the trait. Determine p and q, and the expected genotype frequencies.
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