Pick out the correct statements.

1. Haemophilia is a sex-linked recessive disease.
2. Down's syndrome is due to aneuploidy.
3. Phenylketonuria is an autosomal dominant genetic disorder.
4. Thalassemia is an autosomal recessive gene disorder.
5. Sickle cell anaemia is an X-linked recessive gene disorder.

Question

TestHub · Accepted Answer

Haemophilia or Bleeder's disease is a sex-linked (X-linked recessive) disease. Down's syndrome is caused due to trisomy of chromosome 21 (i.e., hyperdiploid type of aneuploidy). Phenylketonuria, Sickle-cell anemia, and Thalassemia is an autosomal recessive gene disorder.

Zoology - Principles of Inheritance and Variation Question with Solution | TestHub

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