Clarissa's mother was 38 years old when she gave birth to her.Clarissa suffers from an intellectual disability and doctors have diagnosed that her condition was due to the extra chromosome that she had received at the time of conception.Identify the condition afflicting Clarissa.

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Quizplus · Accepted Answer

Down syndrome is a genetic disorder caused by the presence of an extra copy of chromosome 21 at the time of conception. This condition results in intellectual disability, as well as characteristic physical features such as almond-shaped eyes, a small nose and mouth, and short stature. Phenylketonuria, sickle-cell anemia, and Tay-Sachs disease are also genetic disorders, but they are caused by mutations in a single gene rather than an extra chromosome.

Clarissa's Mother Was 38 Years Old When She Gave Birth