Question

What is true about the heterozygous sickle-cell (HbA HbS) condition?

1. sickle-cell anemia is not expressed
2. sickle-cell anemia is expressed under conditions of oxygen deficiency
3. sickle-cell anemia is apparent in men
4. none of the above

Answer 1

Answer:

sickle cell anemia is not expressed

Explanation:

Answer 2

It’s 4 none of the above