If the concordance value for a particular trait is 85% for both monozygotic and dizygotic twins. We can conclude about this trait that <u>it is likely caused almost exclusively by environmental factors.</u>
<h3>What is Concordance?</h3>
Concordance, in genetics, is the probability that a pair of individuals will have a certain characteristic (phenotypic trait) given that one of the pair has the characteristic. Twins are said to be concordant when both have or both lack a given trait. Studies have shown that genetic traits of monozygotic twins are fully concordant, whereas in dizygotic twins, half of genetic traits are concordant, while the other half are discordant.
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