DOWN SYNDROME

Abstract

March 21 - International Down Syndrome Day What is Down syndrome?
Down syndrome is caused by an extra chromosome in the baby's cells by existence. In most cases, it is not inherited occurs during conception. What causes Down syndrome?
At this time, we still do not know what causes the extra 21st chromosome. this
It can be from both mother and father and understanding in advance There is no way
When was Down syndrome discovered? People with Down syndrome have always been born for the first timeEnglish doctor John Langdon Downe described this condition, which
Later they called him after him. In 1959, Professor Jerome Lejeune discovered that Down syndrome It is a chromosomal disorder and is related to the 21st pair of chromosomes
with fusion, which produces 47 chromosomes instead of 46. later These extra chromosomes have been found to result in physical characteristics