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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.

  1. AB Rh+
  2. AB Rh-
  3. A Rh+
  4. A Rh-
  5. B Rh+
  6. B Rh-
  7. O Rh+
  8. 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.
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How many of the possible types of offspring had the same genotype as the parents?

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.


Type B blood marries a woman with type A they have six AB children what are there genotypes?

The woman could be AA or AO and the man could be BB or BO. The children would all be AB.


What are multiple-allele traits?

Traits governed by multiple alleles are controlled by three or more alleles, rather than two. An example in humans is the ABO blood group system. There are three alleles in the ABO blood group system, IA, IB, IO. These three alleles can produce six genotypes, AA, AO, BB, BO, AB, OO. These genotypes can produce four different phenotypes, A (genotypes AA or AO), B (genotypes BB or BO), AB, (genotype AB) and O (genotype OO).


What are the tpes of blood?

According to the red cross website there are eight different kinds of blood types, and they are differentiated by the letters O, A and B in combination with a + or - sign. The different blood types are: O+, O-, A+, A-, B+, B-, AB+ and AB-.


Find Your Groove With The Genotype Diet?

What makes the Genotype Diet unique is it gives different suggestions and nutritional plans for six different genotypes. Each person falls into these genotypes due to certain characteristics such as their blood type, body stature, and sensitivity to certain foods. This creates more of a customized approach to a diet compared to most other programs out there. Other diets try to promote a one-size-fits-all type of program, but knowing how everyone's body is different, these tend to fail for most people. Once you take the book's various questionnaires and find out your genotype, you can follow the weight loss path meant for you.


How many blood groups are there?

There are six types of blood type. Blood type A, B and O, all of these blood type can be positive or negative so giving the total number of blood type to be six.


Is one blood group more dominant than another?

Genotypes, Phenotypes, and frequencies in the ABO blood-typing systemGenotype Blood Type A Antigen present B Antigen Present Frequency exampleIAIA or IAi A + - 41IBIB or IBi B - + 11IAIB AB + + 4ii O - - 44Among the six possible genotypes, there are four distinguishable phenotypes- the A,B,AB and O blood types. In this system, the IA and IB alleles are codominan, since each is expressed equally in the IA IB heterozygotes, and the i allele is recessive to both the IA IBalleles.Principles of Gentics Snustad.Simmons


Why is blood type an example of multiple alleles?

Multiple Alleles:The ABO blood group in humans is determined by multiple alleles of a single gene. There are four possible phenotypes for this character: A person's blood may be either A, B, AB, or O. These letters refer to two carbohydrates--A and B-- that may be found on the surface of red blood cells. A person's blood cells may have carb. A (type A blood), carb B (type B blood), both (type AB), or neither (type O).The four blood groups result from various combinations of three different alleles for the enzyme (I) that attaches the A or B carb. to red blood cells. The enzyme encoded by the IA allele adds the A carb, whereas the IB carb adds the B carb. The enzyme encoded by the iallele adds neither A nor B. Because each person carries two alleles, six genotypes are possible, resulting in four phenotypes. The IA and the IB alleles are dominant to the i allele. They are codominant; both are expressed in the phenotype IAIB heterozygous, who have type AB blood.Source: Campbell, Neil and Reece, Jane. "AP Edition Biology: Seventh Edition.''


How many phenotypes is ABO blood?

4 A B AB O There are 6 genotypes AA AB AO BB BO OO


What are multiple allele traits?

A polygenic trait that require the additive effects of many alleles to be expressed. Height is an example of a polygenic trait. Or, a trait that has many alleles to fill the loci on chromosomes. Blood types are examples of this. A, B and O are all alleles that git the two chromosomal loci, but only any two at once whether homozygous or heterozygous.


What are the six purposes of blood?

what


What are the 8 different blood types?

the six different blood types are AB, AA or AO, BB or BO, OOAB, AA, AO, BB, BO, and OO"The allels for blood types are called A,B, and O. The O allele is recessive to both the A and B alleles. When a person inherits one A allele and one B allele for blood type, both are expressed-phenotype AB. A person with phenotype A blood has the genetic makeup, or genotype BB or BO. Finally, a person with phenotype O blood has the genotype OO"There are actually more than six blood types. There are 30 different recognized systems, each of which has multiple types (at least two, sometimes more).