1. Tardigrade
  2. Question
  3. Biology
  4. Given below is a list of various diseases/disorders. a. Phenylketonuria; b. Grave's disease; c. Thalassemia; d. Rheumatoid arthritis; e. Myasthenia gravis; f. Colour blindness; g. Blindness Which one of the following represents hereditary disease?

Q. Given below is a list of various diseases/disorders.
a. Phenylketonuria; b. Grave's disease; c. Thalassemia; d. Rheumatoid arthritis; e. Myasthenia gravis; f. Colour blindness; g. Blindness
Which one of the following represents hereditary disease?

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Solution:

Phenylketonuria and thalassemia is an autosomal recessive disorder, while colour blindness is an X-linked recessive disorder.
Autosomal recessive disorder is a condition where an individual inherits two mutated genes, one from each parent. Whereas as in X-linked recessive disorder mutation occurs in a gene on the X chromosome.