Question

Which of the following statements is true of twin studies? They are against the law. They demonstrate that disease occurrence is genetic and not based on environmental exposures. They demonstrate that a disease outcome is based on environmental exposures and not genetics, An observed concordance in monocytic twins does not clearly indicate whether a disease is genetic or environmental in ogn

Answer 1

Ans) An observed concordance in monozygotic twins does not clearly indicate whether a disease is genetic or environmental in origin.

Explaination:

- Twin studies enable investigations into the genetic and environmental causes of variation in multifactorial diseases such as asthma. The premise of the twin method is that monozygotic (MZ) twins not only share all their genes but also their upbringing and early environment.