Question

shortnote on down syndrone​

Answer 1

Answer:

Down syndrome is a chromosomal condition that occurs when an error in cell division results in an extra chromosome 21. Down syndrome can affect a person's cognitive ability and physical growth, cause mild to moderate developmental issues, and present a higher risk of some health problems.

Answer 2

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Syndrome means a collection of symptoms.

This is why AIDS is called syndrome ( Acquired Immuno Deficiency Syndrome).