What is the genotype for ABO blood type?
What is the genotype for ABO blood type?
Since there are three different alleles, there are a total of six different genotypes at the human ABO genetic locus. The different possible genotypes are AA, AO, BB, BO, AB, and OO.
What is the blood type if the genotype is A?
A blood test of either type AB or type O is more informative. Someone with blood type AB must have both the A and B alleles. The genotype must be AB. Someone with blood type O has neither the A nor the B allele….Blood types and genotypes?
| Blood type | Possible genotypes |
|---|---|
| A | AA AO |
| B | BB BO |
What type of allelic relationship does the ABO blood group locus have?
The human ABO blood group system exhibits codominance. The system consists of three alleles A, B, and O. Both A and B are dominant in relation to O, and therefore blood group A can have the genotype AA or AO.
Are there three different alleles at the ABO genetic locus?
Since there are three different alleles, there are a total of six different genotypes at the human ABO genetic locus. The different possible genotypes are AA, AO, BB, BO, AB, and OO. The possible human phenotypes for blood group are type A, type B, type AB, and type O. So the answer is ‘6 & 4’.
What are the different types of human ABO blood?
The different possible genotypes are AA, AO, BB, BO, AB, and OO. The possible human phenotypes for blood group are type A, type B, type AB, and type O. So the answer is ‘6 & 4’. Answer verified by Toppr
How are blood group O + offspring produce from A + and B +?
For example, two O blood type parents can produce a child with only O blood type. Two parents with A blood type can produce a child with either A or O blood types. Two parents with B blood type can produce a child with either B or O blood type.
When to know the ABO blood type of a child?
The ABO blood type of the child when the blood type of the father and the mother are known (top chart), or 2. The ABO blood type of the father if the blood type of the child and the mother are known (bottom chart). ABO blood types can be complicated to understand.
What are the genotypes of the ABO blood group?
Her genotype at the ABO location is either AA or AO. Her Rh genotype is either Rh+/Rh+ or Rh+/Rh-. The information that the maternal grandmother is also blood type A+ and a brother is blood type O tells us that the maternal grandmother of the child has genotype AO, since she is type A but donated an O allele to one of her children.
When do you know the ABO blood type of a child?
The ABO blood type of the child when the blood type of the mother and the father are known (top chart), or. The ABO blood type of the father if the blood type of the mother and the child are known (bottom chart).
How many ABO blood groups are there in the world?
ABO Blood Groups: Predicting the Blood Type of Your Children. A description of the pair of alleles in our DNA is called the genotype. Since there are three different alleles, there are a total of six different genotypes at the human ABO genetic locus. The different possible genotypes are AA, AO, BB, BO, AB, and OO.
Is the Rh gene the same as the ABO gene?
The Rh (+/-) factor is inherited separately from the ABO blood types. Similarly to the masking effect of the O gene in ABO blood types, the Rh negative (Rh-) gene is also masked by the presence of a Rh positive (Rh+) genotype. Therefore, a person may have a Rh + blood type and can still have an Rh – gene (See the chart below).