Identify the effect(s) of specific population-genetic forces on genetic variation within and between populations over time....

Identify the effect(s) of specific population-genetic forces on genetic variation within and between populations over time. In each of the table cells, choose one of the options in the drop-down menu that appears.

	Genetic variation within a population	Genetic variation between multiple populations
Mutation	[ Select ] ["increases", "decreases", "can either increase or decrease", "stays the same"]	[ Select ] ["increases", "decreases", "can either increase or decrease", "stays the same"]
Migration	[ Select ] ["increases", "decreases", "can either increase or decrease", "stays the same"]	[ Select ] ["increases", "decreases", "can either increase or decrease", "stays the same"]
Genetic drift	[ Select ] ["increases", "decreases", "can either increase or decrease", "stays the same"]	[ Select ] ["increases", "decreases", "can either increase or decrease", "stays the same"]
Natural selection	[ Select ] ["increases", "decreases", "can either increase or decrease", "stays the same"]	[ Select ] ["increases", "decreases", "can either increase or decrease", "stays the same"]

In a large, randomly-mating population, the frequency of the allele (a) for sickle-cell hemoglobin is 0.028. The results of studies have shown that people with the following genotypes at the beta-chain locus produce the average numbers of offspring given. In the table below, indicate the relative fitness values for these three genotypes.

Genotype	Mean offspring	Relative fitness
AA	5	[ Select ] ["0", "1", "0.83"]
Aa	6	[ Select ] ["0", "1", "0.83"]
aa	0	[ Select ] ["0", "1", "0.83"]

What form of selection is acting on the sickle-cell allele? [ Select ] ["directional selection against the a allele", "directional selection against the A allele", "overdominance", "underdominance"]

Over time, we should expect genetic variation in this population to [ Select ] ["increase", "decrease", "stay the same"] .

Expert Solution

All the answers are provided in the pictures above.

gladiator answered 1 year ago

Genetic variation is the difference in DNA sequences between individuals within a population. The human genome...

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Describe the difference in the effect of genetic drift in large populations compared to smaller populations

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