Which Statement Concerning the Sickle-Cell Trait Is True

question 129

Multiple Choice

Which statement concerning the sickle-cell trait is true?

• A) Individuals with the trait have the dominant phenotype but possess the recessive genotype.
• B) Individuals with the trait have both a dominant and recessive allele for the disorder.
• C) Individuals with the trait are genetically predisposed to the disorder but cannot display any symptoms.
• D) Individuals with the trait tend to have the most severe form of the disease.

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Definitions:

Environmental Standard

Regulations and criteria set by authorities aimed at minimizing the environmental impact of various activities, such as emissions levels and waste management protocols.

Quantity of Pollution

The measurable amount of pollutants or contaminants released into the environment, often subject to regulatory limits.

Marginal Social Cost

Marginal social cost is the total cost to society of producing one additional unit of a good, including both private costs and any externalities.

Environmental Standard

Regulations and criteria set to control pollution levels and protect environmental health by defining acceptable limits of pollutants or environmental impacts.