How does the mean relative fitness change from one generation to the next in res
ID: 189959 • Letter: H
Question
How does the mean relative fitness change from one generation to the next in response to selection, assuming the population is not in HW equilibrium and the relative fitness of each genotypes does not change? (hint: try calculating the mean fitness of the second generation in the example given in the slides)
Mean relative fitness fluctuates randomly between generations
Mean relative fitness is always decreasing from one generation to the next
Mean relative fitness is always constant from one generation to the next
Mean relative fitness is always increasing from one generation to the next
Mean relative fitness fluctuates randomly between generations
Mean relative fitness is always decreasing from one generation to the next
Mean relative fitness is always constant from one generation to the next
Mean relative fitness is always increasing from one generation to the next
Explanation / Answer
Mean relative fitness change is the quantitative representation of natural (genotype) and sexual selection within evolutionary biology. It can also be defined by the survival rate to the reproductive rate of a genotype relative to a maximum reproductive rate of other genotypes.
1.) The mean relative fluctuates randomly between generations because the HW is not in equilibrium. So the genotypes or phenotypes are randomly choosen and hence that affects the traits which cause fluctuation in the natural and sexual selection of individual i.e. If trait supports to natural fitness it's mean become and if not it becomes lower.
2.) The mean fitness decrease from one generation to next is only be possible it the natural and sexual selection of an individual are not occurred normally that means there must be some variations or disruptions which inhibits the individual natural selection growth leads to decrease in relative mean fitness.
3.) The mean relative fitness is constant from one generation to next if there is no change or variation occurs in generations. The individual natural selection and reproductive neither decreasing nor increasing leads to constant relative fitness.
4.) The mean relative fitness increases from one generation to next when the traits favoring the natural and sexual selection of an individual makes the reproductive rate high and so natural fitness too leads to increased mean relative fitness.
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