PATHOLOGY

Detailed explanation-1: -If two copies of the abnormal gene are present, disease may develop. However, if only one abnormal gene is needed to produce a disease, it leads to a dominant hereditary disorder. In the case of a dominant disorder, if one abnormal gene is inherited from the mother or father, the child will likely show the disease.

Detailed explanation-2: -Autosomal recessive conditions These conditions occur only when both parents of a child are carriers of the condition. Two copies of the faulty gene are needed to cause the condition.

Detailed explanation-3: -These are called genetic disorders, or inherited diseases. Since genes are passed from parent to child, any changes to the DNA within a gene are also passed. DNA changes may also happen spontaneously, showing up for the first time within the child of unaffected parents.

Detailed explanation-4: -Inherited cancer gene faults They occur when there is a fault in the genes in an egg or sperm cell at the time of conception. These faults in the initial sperm or egg cell are copied into every single cell in the body. The faulty genes can then pass from generation to generation. They are called germline mutations.

Detailed explanation-5: -Alzheimer’s disease. Arthritis. Cancer. Dementia. Diabetes. Heart disease. High blood pressure. Multiple sclerosis. More items •23-Dec-2019