Question

Twin studies show that monozygotic (identical) twins who are raised in separate homes have similar IQ scores. Such evidence________

Answer 1

Twin studies, like the Minnesota Study of Twins Reared Apart, suggest a strong genetic basis for intelligence, as shown by the similar IQ scores of identical twins raised apart. However, intelligence also results from the interaction between multiple genes and the environment.

Step-by-step explanation:

The evidence from twin studies, particularly concerning monozygotic twins who are raised in separate households and have similar IQ scores, supports the notion that there is a significant genetic component to intelligence. The Minnesota Study of Twins Reared Apart is a prime example of such research, indicating a strong correlation between the IQ scores of identical twins raised apart, which suggests a heritable aspect of intelligence.

These twins generally exhibited very similar personalities and intellectual capabilities regardless of their upbringing, pointing to genetics playing a notable role in these areas. However, the study also acknowledges that personality traits and intelligence are not solely determined by genetics, as they result from an interplay between multiple genes and environmental factors, including socialization.

The impact of socio-economic status on IQ scores and the complex interplay between genetics and environment highlight the challenges in fully understanding the origins of high intelligence.

Answer 2

Twin studies show that monozygotic (identical) twins who are raised in separate homes have similar IQ scores. Such evidence supports the idea that genetics plays a significant role in determining intelligence.

Step-by-step explanation:

The findings from twin studies, particularly those involving monozygotic (identical) twins raised in different environments, provide compelling support for the influence of genetics on intelligence. The similarity in IQ scores between identical twins raised in separate homes suggests a strong genetic component in the determination of cognitive abilities.

Genetics contribute to the heritability of intelligence, shaping individuals' intellectual capacities to a considerable extent. While environmental factors also play a role in cognitive development, the consistency of IQ scores among genetically identical twins, despite differing upbringing, underscores the importance of genetic predispositions.

This evidence highlights the interplay between nature and nurture in shaping intelligence. Although environmental factors can impact cognitive abilities, the remarkable similarity in IQ scores among monozygotic twins emphasizes the substantial genetic influence on intelligence. This insight from twin studies is instrumental in understanding the complex interplay between genetic and environmental factors in the development of cognitive traits.