Down's syndrome, also known as Trisomy 21, is a chromosomal condition which affects physical and intellectual development. People with Down's syndrome typically have distinctive facial features, such as a flat face, slanting eyes, and an upward slant to the corners of the mouth. These features are usually the same in all people with Down's syndrome, although there is some variation.
What Causes Down's Syndrome?
Down's syndrome is caused by the presence of an extra copy of chromosome 21 in the cells of the body. This additional copy of the chromosome disrupts the normal development of the body and brain, leading to the distinctive facial features and other characteristics of Down's syndrome.
Why Do People with Down's Syndrome Look the Same?
The facial features associated with Down's syndrome are caused by the extra chromosome 21. This extra chromosome affects the development of the face, which is why people with Down's syndrome usually have the same features. The extra chromosome also affects the development of the brain, which can lead to intellectual disabilities and other cognitive problems.
Can the Appearance of Down's Syndrome Be Modified?
Although the facial features of Down's syndrome are caused by an extra chromosome 21, this does not mean that they cannot be modified. There are several surgical and medical treatments available which can be used to improve the appearance of people with Down's syndrome. These treatments can include facial plastic surgery, orthodontic treatments, and medications.