You Conduct an Experiment in Which You Raise Six Replicated

question 43

Essay

You conduct an experiment in which you raise six replicated lines of fruit flies for eight generations. You keep population size constant at 20 adults per generation. You are interested in a gene, bw, that affects eye colour. This gene has two alleles, bw-1 and bw-2. You start each replicated line with the frequency of the bw-1 allele at 50%. Do the data in the graph better match the prediction for the bw alleles evolving by genetic drift or by directional selection? Be sure to define directional selection and genetic drift and describe the prediction of both hypotheses.

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Definitions:

Marginal Efficiency

Marginal efficiency is the rate of return on an investment project or the profitability of investing in additional units of a good or service.

Capital

Capital refers to financial assets or the financial value of assets, such as funds held in deposit accounts, as well as the physical factors of production – namely, machinery, buildings, and land.

Expected Profit Rate

The forecasted rate of return on an investment or business venture, based on estimated earnings.

Gross Domestic Product (GDP)

The complete value, in monetary or market terms, of all the goods and services that are finalized within the territorial boundaries of a country within a particular period.