Blood Type A Phenotype

March 23, 2021

Type o is routinely in short supply and in high demand by hospitals both because it is the most common blood type and because type o negative blood is the universal blood type needed for emergency transfusions and for immune deficient infants. Fung mk eder af spitalnik sl westhoff cm 2017 aabb technical manual 19th edition.

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When scientists refer to a person s genotype what we are talking about is the actual set of alleles you carry aka wha.

Blood type a phenotype. Approximately 45 percent of caucasians are type o positive or negative but 51 percent of. The term covers the organism s morphology or physical form and structure its developmental processes its biochemical and physiological properties its behavior and the products of behavior an organism s phenotype results from two basic. The genetic contribution to the phenotype is called the genotype.

Frequency is based on most populations however variations do exist for some phenotypes in certain cultural groups. Phenotype from greek pheno showing and type type is the term used in genetics for the composite observable characteristics or traits of an organism. Some traits are largely determined by the genotype while other traits are largely determined by environmental factors.

You have two alleles for blood group one from each of your parents. Blood types a and b are codominant to each other meaning that if a person inherits the a allele from one parent and the b allele from the other parent both traits will be expressed and the offspring will have ab blood. A phenotype is an individual s observable traits such as height eye color and blood type.

If you know the blood type of two individuals you can easily predict the possible blood types of their children using a punnett square a genetic tool that helps us predict. Blood type o is always recessive so it requires two copies of the o allele for an offspring to demonstrate the o phenotype. Refer to references 1 and 3 for specific references.

The short answer is that your blood type whether you re a b ab or o is your phenotype which is determined by the genotype. If you re phenotype a then you could be aa or ao if you re phenotype b then you could be bb or bo if you re phenotype o the you can only be oo and if you re phenotype a. If a child s phenotype is blood type a and mother also has the phenotype blood type a list the potential genotypes for the father of the child.

If your blood is a positive a it means that your blood contains type a antigens with the presence of a protein called the rhesus rh factor. Unless indicated frequencies are based on blood group statistics of australian blood donors.

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Multiple Allele And Punnett Squares Handout Made By The Amoeba Sisters Click To Visit Website And Scroll Down To Genetics Activities Handouts Punnett Squares