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Which of these are the possible cause of sickle cell anemia with respect to hemoglobin:

Which of these are the possible cause of sickle cell anemia with respect to hemoglobin: Correct Answer Two copies of an abnormal β-globin gene

If a person has one copy of abnormal β-globin gene it will show sickle cell trait but not sickle cell anemia while an individual with sickle cell anemia has both the copies of an abnormal β-globin gene.

Related Questions

Consider the following statements.
1. The sickle cell anaemia is a genetic disease common in tropical and sub-tropical countries.
2. The sickle-cell anaemia is due to mutation in b-globulin gene.
3. Due to the sickle-shaped anaemia, oxygen carrying capacity of the haemoglobin decreases.
Which of the statements given above is/are correct?
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