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Question : What is ancuploidy? Write any four symptoms of Down's syndrome.

Answer»

Solution :Sometimes the chromatids FAIL to segregate during cell division, resulting in gain or loss of a chromosome. This is called aneuploidy.
Down.s SYNDROME : It is the addition of one chromosome 21 or TRISOMY.
Symptoms :
a. Short statured with small round head.
B. Partially open mouth with protruding furrowed tongue.
c. Palm is broad with palm crease.
d. Physical, psychomotor and mental development is retarded.


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