Use the Following Scenario to Answer the Following Questions

question 113

Multiple Choice

Use the following scenario to answer the following questions:
In 2011,three firms (Firm A,Firm B,and Firm C) were selling cellular phone service for a price of $40 per month in Playa del Carmen,Mexico.Each firm serviced 100 cell phone customers; thus,all firms together serviced a total of 300 customers.Assume marginal cost is $0 (zero) for all firms and thus total revenue is equal to total profit.In 2012,Firms A and B each continued to service 100 customers,but Firm C now serviced 150 customers; thus,all firms together serviced a total of 350 customers.All firms now charge $30 per month.
-Due only to the price effect,profits for each firm decline by $1,000.Due only to the output effect,profits for both Firm A and Firm B did not change,and profits for Firm C increased by $1,500.It was in Firm C's interest to increase output because Firm C realized only ________ of the total $3,000 price effect,but it realized the full ________ of the total quantity effect.

• A)
• $1,000; $1,500
• B) $2,500; $1,500
• C) $2,250; $1,500
• D) $1,750; $1,250
• E) $2,000; $1,250

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Definitions:

Stabilizing Selection

Stabilizing selection favors individuals in the middle of the distribution of phenotypes present in a population (for example, by acting against individuals at either extreme).

Overdominance

A genetic phenomenon where the heterozygote genotype has a higher fitness or survival advantage than either of the homozygote genotypes.

Underdominance

A genetic condition in which heterozygotes have lower fitness than either homozygote, leading to a tension between alleles that can result in decreased population stability.

QTL Association Studies

Research aimed at identifying quantitative trait loci (QTL) that are associated with specific phenotypic traits by examining the genetic linkage with markers.