Question

Hi, I need some help in a biology homework. Thank you.

Which of the following does not describe the methodological assumptions of studies using twins.

1) Monozygotic twins have identical genetic endowment as compared to fraternal twins. Hence, the genetic influence of a behaviour can be measured by comparing the manifestation of the behaviour between identical twins and fraternal twins.

2) Monozygotic twins share identical genetic endowment. Hence, studying monozygotic twins who are raised in different environment could help to attribute the extent of differences in behaviour to environmental factors and biological factors.

3) Monozygotic twins share similar genetic endowment. Mapping the genes of these twins will help us understand the differences in their behaviour.

4) All of the above.

Answer 1

All the given option are correct.

Because Monozygotic twins have similer set of genes we can easily study the all mention behavior.