The CDC Is Informed of an Outbreak of Smallpox in a Small

question 106

Multiple Choice

The CDC is informed of an outbreak of smallpox in a small, isolated community in the Midwest region of the United States. Which source of the outbreak is most likely to be identified?

• A) A pathogen leak from a laboratory
• B) A visitor from another country
• C) An intentional contamination
• D) An unvaccinated population

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Definitions:

Recessive

A type of genetic trait or allele that is expressed in an organism only when two copies of the gene or allele are present.

Homozygous

Possessing two identical alleles for a trait.

Alleles

Two or more alternative forms of a gene that occupy the same position on paired chromosomes and affect the same trait.

Independent Segregation

A principle of genetic inheritance where different genes independently separate from one another when reproductive cells develop.