α-thalassemia is another blood disorder in which abnormal hemoglobin molecules are formed, leading to anemia. One mutant allele known to cause α-thalassemia occurs in α-hemoglobin and is called Constant Spring.  Normal α-hemoglobin is 141 amino acids long, while the Constant Spring protein is 172 amino acids long.  Include answers to both A and B in your response. A maximum of 2 sentences per part.

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α-thalassemia is another blood disorder in which abnormal hemoglobin molecules are formed, leading to anemia. One mutant allele known to cause α-thalassemia occurs in α-hemoglobin and is called Constant Spring.  Normal α-hemoglobin is 141 amino acids long, while the Constant Spring protein is 172 amino acids long.  Include answers to both A and B in your response. A maximum of 2 sentences per part.

 

A) Explain how a frameshift mutation in the coding region of α-hemoglobin could result in the Constant Spring protein. 

B) Explain how a single base-substitution mutation in the coding region of α-hemoglobin could result in the Constant Spring protein.

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