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Pathology

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Genetics

Question
1 out of 12
 

About Down's syndrome which of the following is/ are true: (AIIMS May 2012)



A Mongoloid slant for the eyes

B Associated with jejunal atresia

C Hypertonia

D Presence of simian crease

E Trisomy 22

Ans. A And D Mongoloid slant for the eyes, Presence of simian crease

a. Down's syndrome: Commonest chromosomal disorder (Trisomy 21)

b. MC cause is meiotic nondisjunction of ovum.

c. Associated with increased maternal age.

d. ↑ Risk of developing ALL and AML-M7.

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