1. A 55-year-old Caucasian male comes to your office complaining of fatigue. You perform a routine blood draw and note a microcytic anemia. What tests should you run, and what is your concern? 2....

1. A 55-year-old Caucasian male comes to your office complaining of fatigue. You perform a routine blood draw and note a microcytic anemia. What tests should you run, and what is your concern?

2. Explain why the hemoglobin S mutation remains in the population when it causes severe disease in homozygous patients.