Which of the following statements about dominant and recessive diseases is true?

A dominant disease masks the expression of a recessive disease in a heterozygote is the statement that is TRUE about dominant and recessive diseases.

Explanation:

In a person who is a heterozygote (a person with two different alleles of a particular gene or genes), dominant disease is often observed to exhibit symptoms of a recessive disease. The knowledge regarding whether the person is a heterozygote or not plays an important role in the diagnosis of the disease that the person is suffering from.