A genetic mutation causes an individual to produce hemoglobin molecules that do not change their binding affinity for oxygen, even after oxygen binds to a single heme site. How will this mutation affect the transport of oxygen through the individual's bloodstream?

Question

Quizplus · Accepted Answer

Hemoglobin normally changes its binding affinity for oxygen as oxygen molecules bind to the heme sites. This allows for efficient delivery of oxygen to tissues throughout the body. However, in this mutation, the hemoglobin molecules do not change their binding affinity for oxygen, even after oxygen binds to one heme site. This means that oxygen will not be released as readily from hemoglobin, limiting oxygen delivery to the tissues. Therefore, the best choice is B.

A Genetic Mutation Causes an Individual to Produce Hemoglobin Molecules