If one twin has Syndrome B and the other is no more likely to have it than the average non-related individual, then Syndrome B is
A) concordant.
B) discordant.
C) dissimilar.
D) similar.
E) dizygotic.

Question

Quizplus · Accepted Answer

Twins are said to be concordant for a trait if both have the trait, and discordant if only one twin has the trait. Since one twin has Syndrome B and the other does not have an increased chance of having it, they are discordant.

If One Twin Has Syndrome B and the Other Is