Susan and Betty are monozygotic twins,while George and Brent are dizygotic twins.If a particular trait is determined primarily by hereditary factors,what would be the relative degree of concordance in these two twin pairs?

A) George and Brent would be more concordant than Susan and Betty.
B) Susan and Betty would be more concordant than George and Brent.
C) In similar environments, the two sets of twins would be equally concordant.
D) It is not possible to determine concordance from studying twins.

Monozygotic Twins

Twins that result from one fertilized egg splitting and developing into two embryos, genetically identical.

Dizygotic Twins

Twins conceived by the union of two different ova (or a single ovum that has split) with two different sperm cells; also called fraternal twins; they are no more alike genetically than any other siblings.

Concordance

The agreement or compatibility between traits, beliefs, or values among individuals or in data, often used in genetics and psychology to measure similarity.