Why Do All People With Down Syndrome Look The Same
Olivia Luz
Nationality or even race does not matter.
Neck some individuals with down syndrome like my daughter have a thicker neck or what appears to be an excess of skin on the neck this is one of the markers for down syndrome that can be detected in an ultrasound. The physical appearence of down syndrome people are quite similar to each other because those are some of the symptoms of the disorder. All people with her disability share the same facial features it is a characteristic of the syndrome. People with down syndrome usually have an iq a measure of intelligence in the mildly to moderately low range and are slower to speak than other children.
After all people with down syndrome can be born in any family. Why do people with down syndrome look the same. This congenital malformation is associated with a genetic abnormality. In chromosome 21 the presence of an extra set of genes can lead to over expression in most genes over expression has little effect on the body but down syndrome genes seem to reject that alternative hypothesis.
In fact the similarity arises due to the pathology which in all patients as you might guess is common. So they have distinctive facial structures and malformation on the ears hands and feet none of which looks the same. All people have 23 pairs of chromosomes. That is the case for all people.
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Even though people with down syndrome might act and look similar each person has different abilities. It is our human tendency to see a pattern in things that doesn t have one. Those with down s appear to have a significant degree of deficiency in midfacial area mandibular area and endocranial area 1 perhaps due to muscular atrophy caused by the disease. The question of which genes are directly correlated with the similar appearances of down syndrome patients is still a mystery.
The answer is genetics different chromosome carry different genetic material and genetic material is responsible for different aspects of a persons being. Individuals with down syndrome tend to have a flatter profile. Everyone who has them has a severe mutation to their genetic code.
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