Hemoglobin Molecules Analyzed at Various Times During an Animal's Life $\alpha$

question 73

Multiple Choice

Hemoglobin molecules analyzed at various times during an animal's life seem to be highly variable. What is the explanation for this?

• A)Contaminants at various points in an organism's life cause the variation in data.
• B)Hemoglobin denatures when isolated from older embryos.
• C)The combinations of \(\alpha\)-family and \(\beta\)-family globin polypeptides differ with developmental stage.
• D)Hemoglobins are chemically altered as they age.
• E)Hemoglobins bind copper ions instead of iron ions.

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