MCQ
Which of these is not a Mendelian disorder?
  • A
    Cystic fibrosis
  • B
    Sickle-cell anaemia
  • C
    Colourblindness
  • Turner's syndrome

Answer

Correct option: D.
Turner's syndrome
d
The disorder cystic fibrosis, sickle cell anaemia, colour blindness and haemophilia are caused due to the abnormality in gene (Mendelian factor). Turner's syndrome is due to chromosomal abnormality. It is characterized by $44$ autosomes and only one $X-$chromosome.

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