Extracts from this document... Introduction. Alice Walker in her novel The Color Purple illustrates a parallel between the gender roles of women in the early 20th century and Black slavery through the life of Celie and her interactions with Albert, as well as with Nettie's experiences in Africa with the Olinka tribe.
A person's blood type is determined largely by genetics, and it does not change through his or her lifetime. A simple blood typing test can be performed literally anywhere by anyone through the use of specially-treated testing cards.One of the main factors that determines blood type is family genetics. person's blood type is determined largely by genetics, and it does not change through his or her lifetime. A simple blood typing test can be performed literally anywhere by anyone through the use of specially-treated testing cards.
So there are eight blood groups you can belong to: A Rh+, A Rh-, B Rh+, B Rh-, AB Rh+, AB Rh-, O Rh+, and O Rh -, although doctors usually leave out the Rh and just say + or -. What blood type a person ends up with is determined by genetics.f your blood cells stick together when mixed with: Anti-A serum, you have type A blood Anti-B serum, you have type B blood Both anti-A and anti-B serums, you have type AB blood If your blood cells do not stick together when anti-A and anti-B are added, you have type O blood.