NEET BIOLOGY

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

Detailed explanation-2: -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.

Detailed explanation-3: -Gonosomal dominant inheritances are also known. There are no carriers since owners of a dominant hereditary disposition phenotypically express the trait in each case.

Detailed explanation-4: -If a person has only one gene for a disorder, he or she is known as a carrier. Carriers often do not know that they have a gene for a disorder. They usually do not have symptoms or have only mild symptoms.

Detailed explanation-5: -Autosomal recessive genetic disorders may occur if both parents carry one copy of the mutated or variant gene and pass it on to their child. Often, parents will not show any signs or symptoms of the genetic disorder and therefore not be aware they are carriers of a genetic disorder.