ABO Blood Grouping and Its Types

The ABO blood group system is a classification of human blood based on the presence or absence of two antigens, A and B, on the surface of red blood cells. Additionally, it involves the presence of antibodies in the blood plasma. The ABO system is determined by the presence of three main alleles at a single gene locus on chromosome 9: IA, IB, and i.

• Alleles: I^A allele codes for the A antigen on the red blood cells. I^B allele codes for the B antigen on the red…

… (407 more words) …

Subscribe (by clicking here) to view full notes and track progress.

Incomplete Dominance

• Incomplete dominance is a genetic inheritance pattern in which neither of two alleles completely masks the expression of the other.
• In other words, the heterozygous phenotype (individual carrying two different alleles) is an intermediate or blended form of the two homozygous phenotypes (individuals carrying two identical alleles). This results in a unique phenotype that is distinct from both parental phenotypes.
• Unlike in complete dominance, where one allele c…

… (918 more words, 6 figures) …

Subscribe (by clicking here) to view full notes and track progress.