Is it possible for more than two alleles of a gene to exist?

Can a gene have 4 alleles?

A given gene may have multiple different alleles, though only two alleles are present at the gene’s locus in any individual.

Can a gene have many alleles?

When genes mutate, they can take on multiple forms, with each form differing slightly in the sequence of their base DNA. … Different versions of the same gene are called alleles. Genes can have two or more possible alleles. Individual humans have two alleles, or versions, of every gene.

Can a human have 3 alleles?

Although there are three alleles present in a population, each individual only gets two of the alleles from their parents. This produces the genotypes and phenotypes shown in the figure below. Notice that instead of three genotypes, there are six different genotypes when there are three alleles.

When there are 2 alleles for a gene and both make a protein product the alleles are said to be?

Codominance is a relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent.

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Which of these are genes that have more than two alleles?

An organism which has two different alleles of the gene is called heterozygous. Phenotypes (the expressed characteristics) associated with a certain allele can sometimes be dominant or recessive, but often they are neither.

What is a situation in which a gene has more than two alleles?

When there are more than two possible alleles that can exist in a particular population, it is said to be that an individual gene has more than two forms. This condition is known as multiple alleles.

What does it mean for a gene to have multiple alleles?

Multiple alleles is a type of non-Mendelian inheritance pattern that involves more than just the typical two alleles that usually code for a certain characteristic in a species. … Other alleles may be co-dominant together and show their traits equally in the phenotype of the individual.

Why do we have two alleles for each gene?

Since diploid organisms have two copies of each chromosome, they have two of each gene. Since genes come in more than one version, an organism can have two of the same alleles of a gene, or two different alleles. This is important because alleles can be dominant, recessive, or codominant to each other.

When genes have more than two alleles that affect the trait?

The majority of human genes are thought to have more than two normal versions or alleles. Traits controlled by a single gene with more than two alleles are called multiple allele traits. An example is ABO blood type.

Multiple Allele Traits.

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Genotype Phenotype (blood type)
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What is most likely to differ between two alleles for the same gene?

What is different between two alleles of the same gene? The information they carry. For example, one allele might carry the information for blue eye pigment, while the other carries the information for brown eye pigment.