A large population of hawkmoths lives in a valley in Canada.Genetic tests reveal the following frequencies of alleles for wing color.

\begin{array} { l l l } \text { Frequency } & \text { Allele } & \text { Phenotype } \\0.5 & C & \text { Black wing (dominarit to } c ^ { t } \text { and } c ^ { - } \text {) } \\0.4 & c ^ { t } & \text { Tan wing (dominarit to } c ^-) \\0.1 & c ^ { - } & \text {White wing (recessive to both other alleles) }\end{array}

a)If moths continue to mate randomly,what would be the frequencies of moths with black,tan,and white wings in the next generation?
b)A small group of the moths flies to neighboring Montana and starts a new population.After several generations,there is a large randomly-mating population of hawkmoths.Observations of the Montana moths reveal the following:

\begin{array} { l l } \text { Phenotype } & \text { Frequency } \\\hline \text { Black wings } & 0.75 \\\text { Tan wings } & 0 \\\text { White wirgs } & 0.25\end{array}

What are the allele frequencies for C,c^t,and c^-?
c)The change in allele frequency in the Montana population as compared with the original Canadian population is an example of _______.
d)A group of Western Kingbirds migrates into the area occupied by the Montana hawkmoths.The birds find it easier to spot and catch the white-winged moths,compared with the black moths.The relative fitness of each moth is as follows:

\begin{array} { l l } \text { Phenotype } & \text { Fitness } \\\text { Black wings } & 1 \\\text { White wings } & 0.2\end{array}

What will be the allele frequencies for C,c^t,and c^- after one generation of selection?
e)Imagine that instead of birds,hawkmoths from Idaho migrate into the Montana population.The Montana population contains 10,000 moths,and the migrants from Idaho number 2500.The Idaho moths are all white-winged.What is the allele frequency for c^- in the next generation?

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