THE HUMAN IMMUNE SYSTEM
BLOOD GROUPS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
IBIB
|
|
|
IBi
|
|
|
IAIB
|
|
|
IAi
|
Detailed explanation-1: -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. The genotype must be OO.
Detailed explanation-2: -IA, IB both are dominant forms so, person with ii allele have O blood group. Thus people with IAIA or IA i have blood group A and individuals having IBIB or IB i genotype have B blood group. Whereas person having genotype IAIB show phenotype AB and individuals with genotype ii have phenotype O [2].
Detailed explanation-3: -The IAi genotype represents the blood group A and IBi represents the blood group B. According to the possible genotypes of the blood group represented in the cross, the blood group of the offspring can either be type A or type B only.
Detailed explanation-4: -In AB blood type (IAIB), both antigens are expressed equally. So, this is an example of Codominance.
Detailed explanation-5: -The different types of genotypes are-homozygous recessive (pp), homozygous dominant (PP), and heterozygous (Pp). The homozygous dominant and the heterozygous genotypes show the same phenotypes.