Duchenne Muscular Dystrophy Is a Serious Condition Caused by a Recessive

question 32

Multiple Choice

Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the human X chromosome.The patients have muscles that weaken over time because they have absent or decreased dystrophin,a muscle protein.They rarely live past their 20s.How likely is it for a woman to have this condition?

• A)Women can never have this condition.
• B)One-half of the daughters of an affected man would have this condition.
• C)One-fourth of the daughters of an affected father and a carrier mother could have this condition.
• D)Very rarely: it is rare that an affected male would mate with a carrier female.

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Definitions:

Equilibrium

An equilibrium in the market where demand equals supply, causing price stability.

Kinked-demand Model

A model used to explain price stability in oligopolistic markets, suggesting that firms may not change their pricing in response to small changes in costs or demand due to a perceived kink in the demand curve.

Price Increases

A rise in the cost of goods and services over a period of time, often measured as a percentage.

Price Cuts

Reductions in the selling price of goods or services, often used as a strategy to increase demand or compete more effectively in the market.