What type of mutation cause cell anemia?

The most common type of mutation that causes cell anemia is a point mutation in the beta-globin gene. This gene codes for the beta-globin protein, which is a component of hemoglobin. Hemoglobin is the protein in red blood cells that carries oxygen throughout the body. A point mutation in the beta-globin gene can change the structure of the beta-globin protein, which can then lead to the formation of abnormal hemoglobin molecules. These abnormal hemoglobin molecules can cause red blood cells to become sickle-shaped, which can lead to cell anemia.