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Q: What four human groups are controlled by three alleles instead of two?
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Blood type in humans is controlled by which alleles?

Human blood type is determined by codominant alleles.


What traits controlled by a gene with multiple alleles?

Some of the human traits determined by multiple alleles would be hair color, hair texture, eye color, built, physical structures, etc. One notable and most common example of multiple alleles in humans would be of the blood groups.


What three ways are human traits controlled?

Human traits are controlled by a combination of genetic factors (inherited from parents), environmental factors (such as diet and lifestyle), and epigenetic factors (changes in gene expression without changes in the underlying DNA sequence). These factors interact in complex ways to influence the development and expression of human traits.


What are some human traits that are caused by multiple alleles?

The heredity of the ABO blood groups are governed by multiple alleles.


What are genes that have more than two alleles?

ABO blood groups in humans,Coat color in rabbits is determined by four alleles,human-leukocyte-associatedantigen(HLA) genes


What are the fixed alleles in the human species?

alleles that everyone has


What are examples of multiple allelic?

The colour of wheat seeds, or skin colour are common examples used in text books.


How do you know that human height is not multiple alleles?

It is based on multiple alleles.


In humans a trait can be determined by one pair or many pairs of?

the minimum requirement is one pair but it could be more than one pair, an example can be found in human ABO blood groups. it an example of multiple alleles


What traits are controled by a gene with multiple alleles?

Some of the human traits determined by multiple alleles would be hair color, hair texture, eye color, built, physical structures, etc. One notable and most common example of multiple alleles in humans would be of the blood groups.


When a trait has more than two alleles how is the trait inherited?

When more than two alleles are involved in the inheritance of a trait, it is called polygenic inheritance. Many quantitative characters have polygenic inheritance. Inheritance of blood groups is an example of polygenic inheritance in human being.When more than two alleles are involved in the inheritance of a trait, it is called polygenic inheritance. Many quantitative characters have polygenic inheritance. Inheritance of blood groups is an example of polygenic inheritance in human being.


How many alleles are in the human body?

i dont know- but there are 23 pairs of alleles (including the xx or xy ones)