Answer:
Below
Step-by-step explanation:
You are referring to a genetic disorder. Genetic disorders are caused by changes or mutations in an individual's DNA, which can affect the function of a gene or group of genes. This can lead to a range of health problems, including those that affect the nerve cells in the brain. Some common examples of genetic disorders that affect the brain include Down syndrome, Huntington's disease, and Rett syndrome. These conditions are typically caused by changes in a single gene, although they can also be caused by a combination of gene mutations.