Biology
Grade-8
Easy
Question
The condition of sickle cell anemia is due to the
- Silent mutation
- Point mutation
- Chromosomal mutation
- Frame shift mutation
Hint:
The condition of sickle cell anemia is due to point mutation.
The correct answer is: Point mutation
- Sickle cell anemia is caused by a change in the gene that tells the body to make the iron-rich compound in red blood cells called hemoglobin.
- It is caused by a mutation in both copies of a person's HBB gene. This gene encodes a component of hemoglobin, the oxygen-carrying protein in red blood cells. The mutation causes hemoglobin molecules to stick together, creating sickle-shaped red blood cells.
- Hemoglobin enables red blood cells to carry oxygen from the lungs throughout the body.
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