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Which of these disorders is the odd one?
  • a)
    Cystic fibrosis
  • b)
    Sickle cell anaemia
  • c)
    Phenylketonuria
  • d)
    Klinefelter's syndrome
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Which of these disorders is the odd one?a)Cystic fibrosisb)Sickle cel...
The odd disorder among the given options is Klinefelter's syndrome.

Explanation:

Cystic fibrosis, sickle cell anemia, and phenylketonuria are all genetic disorders caused by mutations in specific genes. These disorders are inherited in an autosomal recessive pattern, meaning that an individual must inherit two copies of the mutated gene (one from each parent) to develop the disorder.

On the other hand, Klinefelter's syndrome is a genetic disorder caused by an extra X chromosome in males. Instead of having the usual XY chromosome pair, individuals with Klinefelter's syndrome have XXY chromosomes. This extra chromosome can cause various symptoms such as infertility, reduced muscle mass, and breast enlargement.

In summary, while cystic fibrosis, sickle cell anemia, and phenylketonuria are caused by mutations in specific genes and inherited in an autosomal recessive pattern, Klinefelter's syndrome is caused by an extra X chromosome in males.
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Community Answer
Which of these disorders is the odd one?a)Cystic fibrosisb)Sickle cel...
Klinefelter's syndrome arises due to non-disjunction of X-chromosomes during ova formation. When an ovum containing two X-chromosomes is fertilised by a Y-carrying sperm, XXY individual (47) appears. Thus, it is a chromosomal disorder.
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Which of these disorders is the odd one?a)Cystic fibrosisb)Sickle cell anaemiac)Phenylketonuriad)Klinefelter's syndromeCorrect answer is option 'D'. Can you explain this answer?
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