Question
4) Sickle cell anemia results from a change in hemoglobin that creates sickle-shaped red blood
cells. It is recessive and can be lethal. However, a carrier. (someone who is heterozygous) is
resistant to malaria.
a. Cross a homozygous normal person with a heterozygous person. Will any of the children have
sickle-cell?
Cross two heterozygous people. What are the phenotypes (normal, carrier, sickle cell)
rents and children?
Answer
Yes, any of the children could have sickle-cell. The phenotypes of the parents and children would be heterozygous (carrier) and normal, respectively.