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Blood Types
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Blood Types The Genetics of Blood Type
description
Blood Types. The Genetics of Blood Type. Codominance. Both alleles are Dominant. Neither allele for a trait is recessive. They both express themselves in the phenotype. Genotype labels are: I I I = blood: A=type A coded protien B=type B coded protien. A. B. The Genetics of Blood Type. - PowerPoint PPT Presentation
Transcript of Blood Types
Blood TypesThe Genetics of Blood Type
Codominance• Both alleles are Dominant.• Neither allele for a trait is recessive.
• They both express themselves in the phenotype.
• Genotype labels are: I I• I = blood: A=type A coded protien
B=type B coded protien
A B
Phenotype
Genotype
The Genetics of Blood Type
Phenotype
Genotype
A
The Genetics of Blood Type
Phenotype
Genotype
A
B
The Genetics of Blood Type
Phenotype
Genotype
A
B
AB
The Genetics of Blood Type
Phenotype
Genotype
A (I )
B (I )
AB
O (recessive)= i
The Genetics of Blood Type
A
B
Phenotype
Genotype
A+ ( + = antibodies against B type blood)
A- ( - = no antibodies against B type blood)
B( + is dominant over - )
AB
O
The Genetics of Blood Type
Phenotype
Genotype
A+ ( + will attack other blood types )A-B+B-AB+AB-O+O-
The Genetics of Blood Type
Phenotype
Genotype
A+ AA++A-B+B-AB+AB-O+O-
The Genetics of Blood Type
Phenotype
Genotype
A+ AA++, AO++A-B+B-AB+AB-O+O-
The Genetics of Blood Type
Phenotype
Genotype
A+ AA++, AO++, AA+-A-B+B-AB+AB-O+O-
The Genetics of Blood Type
Phenotype
Genotype
A+ AA++, AO++, AA+-, AO+-A-B+B-AB+AB-O+O-
The Genetics of Blood Type
Phenotype
Genotype
A+ AA++, AO++, AA+-, AO+-A- AA--, AO--B+ BB++, BO++, BB+-, BO+-B- BB--, BO--AB+ AB++, AB+-AB- AB--O+ OO++, OO+-O- OO--
The Genetics of Blood Type
The Genetics of Blood Type
Donor/Recipient?
The Genetics of Blood Type
How can we predict Blood Type inheritance?
The Genetics of Blood Type
How can we predict Blood Type inheritance?
Using a Punnett square!
The Genetics of Blood Type
How can we predict Blood Type inheritance?
Using a Punnett square!
Let’s look at possible blood types of the children of a couple whose blood types are AB- and O-.
The Genetics of Blood Type
First we need to determine their genotypes.
Looking at our chart, the genotype for AB- is AB-- and the genotype for O- is OO--.
We need to FOIL and then draw a Punnett square.
From one parent we can get A- or B-From the other we can only get O-.
The Genetics of Blood Type
O-
A- AO--
B- BO--
The Genetics of Blood Type
O-
A- AO--
B- BO--
The Genetics of Blood Type
O-
A- AO--
B- BO--
The Genetics of Blood Type
O-
A- AO--
B- BO--
The Genetics of Blood Type
O-
A- AO--
B- BO--
The Genetics of Blood Type
O-
A- AO--
B- BO--
The Genetics of Blood Type
O-
A- AO--
B- BO--
Phenotype
A-
B-
The Genetics of Blood Type
Your homework:
Blood Types Worksheet
