Billy Bob Is a Participant in a Study Investigating the Effectiveness

question 9

Multiple Choice

Billy Bob is a participant in a study investigating the effectiveness of Ritalin in treating ADHD. Billy Bob has ADHD, but is in a group that received sugar pills instead of Ritalin. Billy Bob is in the __________ group.

• A) experimental
• B) random
• C) control
• D) observational

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Definitions:

Heterozygous

Having two different alleles of a gene, one inherited from each parent, resulting in genetic variation.

Hemophilia

A genetic disorder leading to impaired blood clotting, resulting from deficiency or dysfunction of clotting factors.

Punnett Square

A diagram used in genetics to predict the genotypic and phenotypic outcomes of a particular cross or breeding experiment.

Phenotypes

The observable characteristics or traits of an organism, resulting from the interaction of its genotype with the environment.