A) Downs syndrome-21st chromosome
B) Sickle cell anaemia-X-chromosome
C) Haemophilia-y-chromomosome
D) Parkinson disease-X and Y chromosome
Correct Answer: A
Solution :
Downs syndrome also known: is Mangolian idiocy is a trisomic condition resulting from non-disjunction of chromosome number 21st. The child is mentally retarded, has flat face and eyes like those found in mangolian race (and hence the name).You need to login to perform this action.
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