Blood Types. Genetics of Blood Your blood type is established before you are born, by specific genes inherited from your parents.

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Presentation transcript:

Blood Types

Genetics of Blood Your blood type is established before you are born, by specific genes inherited from your parents.

Genotypes & Phenotypes There are 3 alleles or genes for blood type: –A –B –O

Dominant & Recessive O is recessive A is dominant B is dominant

Genotypes & Phenotypes There are 3 alleles or genes for blood type: –A –B –O So, what are the 6 possible genotypes?

Genotypes & Phenotypes

GenotypesPhenotypes AAType A AOType A BBType B BOType B OOType O AB?

Co-dominant When the dominant B allele gets paired with the dominant A allele… A BA B A new blood type results…AB

Genotypes & Phenotypes GenotypesPhenotypes AAType A AOType A BBType B BOType B OOType O ABType AB