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Your cousin learns that she is a carrier for phenylketonuria (PKU). Her husband's biological mother has PKU. She asks you to explain what this could mean if she and her husband have children and asks what, if anything, could be done to best protect any child that may have. What would you tell her?
Phenotype
The set of observable characteristics or traits of an organism, resulting from the interaction of its genotype with the environment.
Genetic Variation
The differences in DNA sequences among individuals in a population, which can lead to variations in physical appearance, behavior, and susceptibility to diseases.
Eukaryotes
Organisms whose cells contain a nucleus enclosed within a membrane, including animals, plants, and fungi.
Archaea
A domain of single-celled microorganisms that are genetically distinct from bacteria and eukaryotes, often found in extreme environments.
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