The most commonly asked correct example of a hereditary disease in these exam-style questions is haemophilia (also spelled hemophilia).

Direct Answer

If the options include haemophilia , colour blindness , or sickle cell anaemia , all of these are hereditary diseases, but:

  • Many competitive exams specifically mark haemophilia as the correct answer when the question is phrased as:

“Which one of the following is a hereditary disease?”

So, in that standard MCQ context, the expected answer is:

Haemophilia – a hereditary (genetic) bleeding disorder passed through X‑linked genes.

Quick Scoop: What is a Hereditary Disease?

  • A hereditary disease is caused by genes passed from parents to children through their DNA.
  • These conditions are present because of mutations or defects in specific genes or chromosomes , and can run in families across generations.

Common examples of hereditary diseases include:

  • Haemophilia (blood clotting disorder).
  • Sickle cell disease (abnormal, sickle-shaped red blood cells).
  • Cystic fibrosis (affects lungs and digestive system).
  • Huntington’s disease (neurodegenerative brain disease).
  • Tay–Sachs disease (severe nervous system disorder in infants).

Mini Table: Examples of Hereditary Diseases

[7][4] [1][3] [3][1] [7][3] [9][1][3]
Disease Main Body System Affected Hereditary Pattern (simplified)
Haemophilia Blood clotting X‑linked (more common in males)
Sickle cell disease Blood, heart, lungs, kidneys Autosomal recessive (both parents pass the gene)
Cystic fibrosis Lungs and digestive system Autosomal recessive
Huntington’s disease Brain and nervous system Autosomal dominant (one copy of gene is enough)
Tay–Sachs disease Nervous system Autosomal recessive

Forum-Style Note

In many exam prep discussions, whenever someone asks “Which one of the following is a hereditary disease?” , the go‑to key answer is haemophilia , unless the question or options specify otherwise.

TL;DR

  • Haemophilia is the standard textbook/exam answer to “which one of the following is a hereditary disease?”
  • Other classic hereditary diseases include sickle cell disease, cystic fibrosis, Huntington’s disease, and Tay–Sachs disease.

Information gathered from public forums or data available on the internet and portrayed here.