A person with Down syndrome typically has some level of intellectual disability and a variety of other physical characteristics,such as slanted eyes and a thick tongue.These characteristics are the

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Quizplus · Accepted Answer

Phenotype refers to the observable physical and behavioral characteristics of an individual, which are determined by both genetic and environmental factors. Down syndrome is caused by a genetic abnormality that results in an extra copy of chromosome 21, which leads to various physical and cognitive characteristics. Therefore, the physical characteristics of a person with Down syndrome, such as slanted eyes and a thick tongue, are part of their phenotype. The other answer choices (A, C, and D) are not relevant to the concept of phenotype.

A Person with Down Syndrome Typically Has Some Level of Intellectual