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Tardigrade
Question
Biology
A disease caused by an autosomal primary non- disjunction is:
Q. A disease caused by an autosomal primary non- disjunction is:
2321
178
NEET
NEET 2017
Principles of Inheritance and Variation
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A
Klinefelter's Syndrome
9%
B
Turner's Syndrome
8%
C
Sickel Cell Anemia
20%
D
Down's Syndrome
63%
Solution:
Down's syndrome is caused by non-disjunction of
2
1
st
chromosome.