PATHOLOGY

Detailed explanation-1: -Thus, a person cannot be a carrier for a dominant genetic disorder.

Detailed explanation-2: -No, someone cannot be a carrier for a dominant disorder. Dominant genetic disorders are caused by mutations in a single copy of a gene, and the presence of the mutated gene is enough to cause the disorder. In other words, if a person has a dominant genetic disorder, they will express the disorder.

Detailed explanation-3: -Parents who have only one changed gene copy usually do not display any symptoms of the disorder and may not even know they carry a gene change. Researchers estimate that we each have ("carry") 6-10 recessive gene changes. Certain recessive gene changes may be more common in different population groups.

Detailed explanation-4: -People are sometimes concerned or surprised about finding out that they carry a genetic condition. Every person on earth carries several genetic conditions (mutations), usually without any symptoms or signs, so it’s actually quite normal to test positive.

Detailed explanation-5: -Recessive inheritance means both genes in a pair must be abnormal to cause disease. People with only one defective gene in the pair are called carriers. These people are most often not affected with the condition. However, they can pass the abnormal gene to their children.