Surely many have paid attention to how similar people with Down syndrome are to each other. They have the same flat face, a shortened neck and skull, a flattened nose and narrow eyes. Pathology is visible at first glance and is easily identified.
What determines the external similarity of such people?
Down syndrome has been known to mankind since ancient times and is widespread among people. This is a genetic abnormality
An extra chromosome appears as a result of adhesion of the nucleus of a eukaryotic cell during the development of a fertilized female reproductive cell. According to statistics,
In this case, the anomaly appears by chance, it is not affected by either heredity or the environment. The only factor that increases the likelihood of developing the syndrome in a child is the age of the parents. The older they are, the higher the risk.
Scientifically speaking, chromosomal abnormalities are not a disease. The deviation is expressed only in the appearance of characteristics inherent in the 47th chromosome.
Pathology really determines the presence of many common features in children — these are both external signs and mental development. Down syndrome deforms the structure of the body, affects muscle tone, joint mobility, and many other factors.
Typically, these children also have mental retardation. This greatly affects the expression on the face. Such children smile more often, and their eyes are innocent and empty.
And yet, despite their similarity,
Individuality is especially evident with age. 80% of people with a similar genetic pathology
It should be noted that the degree of mental and physical deformity in a child with the syndrome can be completely different: from a mild form, when the signs of anomaly are almost invisible and smoothed out in the learning process, to severe with a complete absence of thinking.