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Essential Study Partner Activities |
Chapter 23: Population Genetics |
EVOLUTION/Processes/Natural Selection/screen 6
If you continued to spray the population in the example over many generations you would expect: a) the susceptible allele to be eliminated, b) some equilibrium, with a low concentration of the susceptible allele, to be reached, c) the allele concentrations to oscillate with first the resistant and then the susceptible alleles becoming most common, d) The resistant gene becoming the dominant allele.
EVOLUTION/Processes/Other Processes/screen 2
In a different population of frogs, you find that the allele frequencies are A-0.30 and a-0.70. What would be the genotype frequency of the dominant homozygotes( AA) and the heterozygotes (Aa)?
In a population of salamanders you find that the albino phenotype (from recessive gene w) is present in 2.25% of the population. What is the Allele frequencies of the dominant gene W and the recessive gene w?
EVOLUTION/Processes/Other Processes/screen 7
In a small population of lizards on an island it is discovered that a recessive gene results in females which produce a pheromone which is very attractive to males. Discuss what effect genetic drift would be expected to have in the evolution of this population.
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