In Experiments with Laboratory Populations of Drosophila Melanogaster,Mukai and Burdick

question 22

Multiple Choice

In experiments with laboratory populations of Drosophila melanogaster,Mukai and Burdick (1959) observed that a lethal allele maintained a higher than expected frequency.The explanation for this observation is that,at equilibrium,the selective advantage of the lethal allele when it occurs in heterozygotes balances the disadvantage of the allele in homozygotes,and is termed ________.

• A) equilibrium distribution
• B) underdominance
• C) allelic frequency dependence
• D) overdominance
• E) terminal dominance

---

Definitions:

Price Elasticity of Demand

A measure of how much the quantity demanded of a good responds to a change in the price of that good.

Elastic

A term often used in economics to describe a situation where the demand for a product or service significantly changes in response to a change in price.

Pricing Strategy

An approach businesses use to set the prices for their products or services, based on costs, market demand, competition, and other factors.

Marginal Revenue

The change in total revenue that results from selling one additional unit of product.