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Q.
The correct sequence of the first six amino acids in HbA beta globulin peptide is
NTA AbhyasNTA Abhyas 2020Principles of Inheritance and Variation
Solution:
HbA is adult hemoglobin. The first six peptides on its beta-globin chain are Valine - Histidine - Leucine - Threonine - Proline - Glutamic acid. In sickle cell anemia, HbS is formed. It has valine instead of glutamic acid in the 6th position.