Concordance of a trait helps establish whether or not a trait
A) has a genetic basis.
B) is associated with genetic disease.
C) is recessive.
D) is autosomal.
E) is sex-linked.

Question

Quizplus · Accepted Answer

Concordance is the degree of similarity between pairs of individuals with respect to a particular trait. Concordance studies are particularly useful in determining the genetic basis of traits, as they compare the likelihood that the trait is expressed in individuals who share different degrees of genetic relatedness (e.g., siblings, twins, etc.). High concordance between pairs of related individuals suggests a strong genetic component to the trait, while low concordance suggests a weaker or non-genetic contribution. Therefore, Option A - "has a genetic basis" - is the correct answer.

Concordance of a Trait Helps Establish Whether or Not a Trait