Question

write a brief note on down​

Answer 1

Answer:

Down syndrome (or Down's syndrome) is a chromosomal disorder caused by an error in cell division that results in an extra 21st chromosome.Through a series of screenings and tests, Down syndrome can be detected before and after a baby is born. Down's syndrome is caused by non.

Its also known as trisomy 21. A person suffering from down syndrome could be recognized by his/her neck webbed, bulging eyes, tongue protruding out, mental retardation, short stature, mongoloid face and short lifespan.

Explanation:

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Answer 2

you means down syndrome

down syndrome is also known as the trisomi 21

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