The genetic basis of complex traits is demonstrated by:
1)Resemblance between relatives
2)Similar appearance of monozygotic twins
3)Responses to selective breeding such as the increase in resistance to disease
A) 1
B) 2
C) 3
D) 1 and 2
E) All of these

Question

Quizplus · Accepted Answer

All three options given in the question - resemblance between relatives, similarity between monozygotic twins, and responses to selective breeding are evidence that complex traits have a genetic basis. Resemblance between relatives suggests that genetic similarity influences the trait, and similarities between monozygotic twins provides further evidence for the role of genetics. Selective breeding experiments also demonstrate how genetic factors can affect traits such as an increase in resistance to disease. Therefore, the best choice is all of these - option E.

The Genetic Basis of Complex Traits Is Demonstrated By