The Positive Correlation Between IQ Scores of Unrelated Children Reared

question 66

Multiple Choice

The positive correlation between IQ scores of unrelated children reared in the same home shows the influence of their

• A)shared environmental experiences.
• B)personally unique environmental experiences.
• C)personally unique nutritional preferences.
• D)personally unique genetic heritages.

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Definitions:

Carriers

Individuals who possess one copy of a mutated gene for a recessive genetic condition but do not exhibit symptoms of the condition themselves, though they can pass the gene to offspring.

Dominant Gene

A gene that is expressed in the phenotype even when only one copy is present in the genotype.

Genetic Characteristics

Traits and features that are determined by genes inherited from one's parents, affecting physical and sometimes behavioral aspects.

Recessive Genes

Genetic traits that require two copies, one from each parent, to be expressed in an individual's phenotype.