Although there are actually several genes which determine ABO-type, they are usually placed into the three basic groups i.e. A, B and O.
For each phenotype, the genotypes follow:
Phenotypes are the traits expressed by the genotype. So, for blood type, a person can have A and i alleles (genotype). However, in the phenotype, since i is recessive, only the A will be expressed, and the person will have an A blood type.
BB or BO
If the parents both have the genotype Aa, their children could have the genotypes AA, Aa, or aa. The possible phenotypes for their children would be individuals with type A blood (AA or Aa genotype) or type O blood (aa genotype).
The possible genotypes for blood type B are BB and BO (heterozygous). Blood type B is inherited through the presence of the B antigen on red blood cells, which is controlled by the gene locus on chromosome 9.
It is not common to refer to blood types as "genotypes," as blood genotypes are typically represented by combinations of letters and symbols (such as A, B, O, +, -). "Ac" is not a recognized blood genotype in the ABO blood group system.
Blood typePossible genotypesAAA AOBBB BOBlood typePossible genotypesABABOOO
The two possible genotypes for a person with blood type A are AA and AO.
AO or AA
Possible genotypes for a person with type B blood are IBIB or IBi, where IB represents the gene for type B blood and i represents the gene for type O blood.
The possible genotypes for blood type A are AA and AO.
The two possible genotypes for blood type A are AA and AO.
If the first person is AA, then the possible resulting genotypes are AA or AB. If the first person is AO, then the possible resulting genotypes are AA, AB or BO.
Phenotypes are the traits expressed by the genotype. So, for blood type, a person can have A and i alleles (genotype). However, in the phenotype, since i is recessive, only the A will be expressed, and the person will have an A blood type.
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Yes. The genotypes of the father could be BO or BB (Phenotype = B) The genotype of the mother is OO(Phenotype = O) Mating these genotypes will produce either OO (Phenotype O) or BO (Phenotype B) In short, children from these parents are B or O The Rhesus(D) positive was inherited from the father.
In the perfect world, no. IA and IB are codominant so both alleles are represented in the person's phenotype. Blood type A can only be represented by itself in a phenotype if the person's genotype is either IA IA or IA i.(The result of a DNA mutation may be able to create a phenotype of blood type A out of a (purebred) cross (of blood type A and B).No. IA and IB are both codominant . Blood type A can only be represented by itself in a phenotype if the person's genotype is IAIA or IAi. Blood type B can only be represented by itseft in a phenotype if the person's genotype is IBIB or IBi. If the phenotype (blood type) is AB the genotype is IAIB.
Individuals with blood type O can have the genotypes OO or Oi, where "i" represents the recessive allele for blood type O.