Suppose That a Researcher Finds That Monozygotic Twins Reared Together

question 150

Multiple Choice

Suppose that a researcher finds that monozygotic twins reared together in the same home show differences with respect to intelligence.What do those differences indicate about the role of environmental and genetic factors in the development of that trait?

• A)Environmental factors have more influence than genetic factors.
• B)Genetic factors have more influence than environmental factors.
• C)Both genetics and environmental factors contribute equally.
• D)Genetic factors are solely responsible.

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Definitions:

Origination Rate

The speed at which new species or genetic variations appear within a given lineage or ecosystem over time.

Extinction Rate

The rate at which species or other taxa disappear from Earth, an important factor in studying biodiversity and the effects of human activities and natural events on ecosystems.

Cichlid Species

A diverse group of freshwater fish known for their varied colors, shapes, and behaviors, native primarily to Africa and South America.

Adaptive Radiations

The rapid evolution of diversely adapted species from a common ancestor upon encountering new environments or ecological niches.