Answer to Question #217946 in English for ALBERT THIPE PAPOL

Question

Your neighbour asks you to explain the probability that her twin daughters who are living apart would get similar scores on intelligence test. Your explanation is based on the research findings that children who are more likely to obtain similar scores on an intelligence test are the . . .

1. fraternal twins that are raised in similar environments

2. identical twins that are raised in similar environments

3. identical twins that are raised in different environments

4. fraternal twins that are raised in different environments

Answer 1

Identical twins that are raised in similar environments.

Any differences between identical twins is expected to be due to environmental factors since they are genetically identical, whereas fraternal twins only share half of their genes on average. When an environmental influence is dominant, the trait similarity would be the same for identical and fraternal twins.