In man, abnormality with chromosome 21 often lead to a genetic problem called _____

Explanation

Abnormalities with chromosome 21 in humans can lead to a genetic condition known as Down syndrome. Down syndrome is a condition where a person has an extra copy of chromosome 21, resulting in intellectual disability and physical abnormalities. It is a genetic disorder that affects development and can lead to various health problems such as heart defects, hearing loss, and vision problems. The condition is usually diagnosed shortly after birth by observing physical characteristics such as a flat face, small head, and upward slanting eyes. Down syndrome is not caused by any actions of the parents and cannot be prevented. However, early intervention and support can improve the quality of life for individuals with Down syndrome. Therefore, it is essential to provide adequate support and care to individuals with Down syndrome to help them lead healthy and fulfilling lives.