1) 6 and 4
2) 4 and 6
3) 4 and 4
4) 6 and 6
Answer:2) 4 and 6
Explanation: The ABO blood group is determined by three alleles of the gene ‘I’ that is responsible for producing surface antigen on RBCs. The three alleles are IA, IB, and i. These three alleles combine to form 6 types of genotypes. Since IA and IB are codominant over i, there are 4 types of phenotypes possible, i.e. A, B, AB and O. Check the table below for the different genotypes and corresponding phenotypes or blood types with respect to ABO blood groups.
|
Genotype |
Phenotype (Blood Type) |
|
IAIA, IAi |
A |
|
IBIB, IBi |
B |
|
IAIB |
AB |
|
ii |
O |
Also Check:
- How Does Gene Linkage Affect Inheritance?
- What Happens During Segregation?
- What Phenotype Is Associated With The Genotype XXY?
- What Is A Codominance?
- How Do You Find the Frequency of a Recessive Allele?
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