2, AA, and AO
The baby's blood group depends on the genotypes of both parents, not just one.
Use a punnet square it may be a little tricky though.Just remember which letter is dominant and which one is recessive.heterozygous and Homozygous.
Although there are actually several genes which determine ABO-type, they are usually placed into the three basic groups i.e. A, B and O.For each phenotype, the genotypes follow:O: OO is the only possibility.A: AA or AO are both acceptable.B: BB or BO are both acceptable.AB: AB is the only possibility.
The number of genotypes in a population depends on the number of different combinations of alleles present in the gene pool. The exact number can vary depending on the specific genetic traits being considered and the size of the population.
Punnett squares can be used to predict the genotype (genetic makeup)- and thus the phenotype (observable/testable trait)- of offspring, given the genetic makeup of the parents. For example, if a woman who has heterozygous A blood (AO) has children with a man who has blood type O (OO), a Punnett square will allow you to predict that half of the children will have blood type O and the other children will have blood type A. However, this only works for traits that are strictly dominant/recessive and determined by one pair of genes, like Mendel's pea color or human ABO blood types. Traits such as hair/eye color, sensitivity to taste, and many others are polygenic (determined by many genes) and cannot be easily determined from the parents.
Many possible genotypes, producing ,any possible phenotypes.
People receive a total of 46 genotypes from their parents.
There are many genotypes with specific names depending on the organism. For example, in humans, genotypes can include AA, Aa, or aa for single gene traits. In plants, genotypes may be represented by combinations of letters and symbols. Overall, genotypes are named based on the specific alleles an individual carries for a particular gene.
An allele is a type of gene that is hereditory. In fertilisation, an allele from both the father and mother are fused, this is multiple allele hereditory. Alleles influence many things, from hair colour to blood type. human blood typeshuman blood types
Blood type in humans is controlled by three alleles at the ABO gene locus on chromosome 9. These three alleles are responsible for determining the blood types A, B, AB, and O. Each person inherits one allele from each parent, resulting in various blood type combinations.
The primary blood types in humans are controlled by the ABO and Rhesus factor systems, there are some other antigen factors that also determine certain rare blood types in addition to these but they have only a minor influence.AB Rh+AB Rh-A Rh+A Rh-B Rh+B Rh-O Rh+O Rh-In total 33 blood-group systems (each group having 2 or more blood types) have been identified, including the ABO and Rh systems. Thus, in addition to the ABO antigens and Rh antigens, many other antigens are expressed on the red blood cell surface membrane. For example, an individual can be AB, D positive, and at the same time M and N positive (MNS system), K positive (Kell system), Lea or Leb negative (Lewis system), and so on, being positive or negative for each blood group system antigen. Many of the blood group systems were named after the patients in whom the corresponding antibodies were initially encountered.
There is only one normal type of red blood cell.