Which of the following pair is not matched correctly?
Down's Syndrome => Trisomy 21
Super Female => 44 + XXX
Super Male => 42 + XYY
Turner's syndrome => 44+ X0
Solution
Option (1) Down's Syndrome => Trisomy 21
Trisomy 21, also known as Down's Syndrome, is the most common chromosomal anomaly in humans.
Therefore, it is correct pair.
Option (2) Super Female => 44 + XXX
Super Female is characterized by the presence of extra one X-chromosome in Female (44 + XXX)
Therefore, it is correct pair.
Option (3) Super Male => 42 + XYY
Males with XYY syndrome have 47 chromosomes because of the extra Y chromosomes.
Therefore, it is incorrect pair.
Option (4) Turner's syndrome => 44+ X0
Turner's syndrome is the absence of one X-chromosome from female (44+ X0).
Therefore, it is correct pair.
Hence, option (3) is the answer to the given question.
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