Emma and Anna Are Identical Twins Who Were Adopted by Different

question 109

Multiple Choice

Emma and Anna are identical twins who were adopted by different families a few weeks after birth.Although genetically identical,they grew up with different physical and psychological characteristics.For example,though both inherited a tendency to grow large,Anna was slim and athletic due to the active lifestyle practiced in her adoptive family.This variability can be explained by how:

• A)each zygote is unique.
• B)longevity genes can make an individual less vulnerable to certain diseases.
• C)for each genotype,a range of phenotypes can be expressed.
• D)mutated genes can be a source of genetic variability.

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Definitions:

Correlation Coefficient

A statistical measure that calculates the strength and direction of a linear relationship between two quantitative variables.

Unitary Ability

The concept that intellectual capabilities can be represented as a single general ability or factor, often referred to as "g" in intelligence research.

Specialized Abilities

Unique skills or competencies that are highly developed or adapted for specific tasks or environments.

Unitary Phenomenon

A term that suggests a singular or unified event, characteristic, or concept, typically used in science or philosophy to describe something that cannot be divided.