how are the four human blood types inherited in context to phenotypes, genotypes and inheritance pattern?

Answer 1

Well the phenotype of blod type depends on the genotype which is inherieted by your parents.
The 3 genotpyes give you 4 phenotypes because A and B are both dominant (co-dominant)
Here are the genotpyes and phenotypes
AA or AO= A blood type
BB or BO = B blood type
AB=AB blood type
OO= O blood type

Because O is recessive you see it can be involved in 3 blood types. Depending on what your parents (and grandparents) bloodtypes are, is what you could get.

If your parents are both O (OO x OO), you can only be O
If your parents are A and O (AO X OO or AA xOO) you will be either A or O...the same thing for B blood types too.
You can get some crosses where you can get the whole range of blood types eg
AO x BO will give AB, AO, BO and OO so you will have a 25% chance of being any blood type.
AB x AB will give AA, AB ,AB, BB

Answer 2

The inheritance pattern: human blood type is controlled by multiple alleles. The A allele and the B allele are codominant. Both A and B are dominant to O.

You can write the alleles in two different ways: A, B, O, or IA, IB, i.

The four genotypes and the genotypes that produce them are:
Type A: IA IA or IA i (AA or AO)
Type B: IB IB or IB i (BB or BO)
Type AB: IA IB (AB)
Type O: ii (OO)