Q. Which of these is not a Mendelian disorder?

A) Cystic fibrosis
B) Sickle-cell anaemia
C) Colourblindness
D) Turner’s syndrome
Explanation

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.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.