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Sickle cell anemia is caused due to change of glutamic acid to:

Correct answer: C. Valine

  • A. Histidine
  • B. Leucine
  • C. Valine
  • D. Proline

Explanation

Sickle cell anemia is caused by a specific point mutation in the gene that encodes the beta-globin subunit of hemoglobin. In this mutation, the amino acid glutamic acid is substituted with valine at position 6 of the beta-globin chain. So, the correct answer is that in sickle cell anemia, glutamic acid is changed to valine.

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