Which of the Following Is True About Sexually Transmitted Diseases

question 19

Multiple Choice

Which of the following is true about sexually transmitted diseases (STDs) in the United States?

• A)STDs are a relatively minor problem in the United States because of the widespread use of condoms.
• B)Over 56 million Americans have an incurable STD.
• C)The rate of infection from STDs among teenagers is falling due to condom use.
• D)Except for the common cold and the flu, STDs are the most common disease in North America.
• E)Both b and d are true.

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Definitions:

Genomic Imprinting

The instance when the expression of a gene is determined by whether it is inherited from the mother or father.

Crossing Over

The process during meiosis in which homologous chromosomes exchange portions of their DNA, leading to genetic recombination.

Heritability

The statistic that indicates the extent to which variation of a certain trait can be traced to genes.

Mutation

A change in the DNA sequence of an organism's genome, which can lead to genetic variation and sometimes result in observable changes in the organism.