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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 i
allele 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.''
Erin Bode
Wiki User
∙ 14y agoMultiple 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 i
allele 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.''
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An example of multiple alleles?
Blood type.
What is an example of multiple alleles?
blood type is an examples of multiple-allele inheritance.
What are blood types of humans examples of?
Blood type in humans is an example of multiple alleles.
Multiple alleles can be studied only in individuals?
Multiple alleles can be studied only in populations, not individuals. An example of multiple alleles would be blood type, each person has only one blood type, but a population has a many permutations.
What is an example of a trait produced through multiple alleles?
eye color, blood type, hair color
Is the three alleles of the single gene that controls blood type is said to be what alleles?
multiple alleles
Why is blood type controlled by multiple alleles?
Yes.
Is ABO blood group determined by multiple alleles?
* Type A alleles could be : IAIA or IAi* Type B alleles could be : IBIB or IBi* Type AB alleles : IAIB* Type O alleles : ii
What is the blood type in humans controlled by?
Blood types are controlled by multiple alleles.
Blood type is an example of what?
mulitple alleles
How are multiple alleles different from polygenic traits?
Multiple alleles are genes that have more than two alleles. An example of this would be blood types, with ABO as three separate alleles.Polygenic traits are traits whose phenotype rely on alleles from different genes. An example of this would be hair type, which relies on genes from different parts of chromosomes.The main difference is that multiple alleles are genes with 3 or more alleles; polygenic traits do not necessarily have more alleles, but they rely on on multiple genes.
What is the ABO blood typing system?
The AB blood type is an example of a blood type having no antibodies.
