Question: When there are more than two possible alleles at a locus?

What happens if there are more than two alleles?

Traits controlled by more than two alleles have multiple alleles. Although any one person usually has only two alleles for a gene, more than two alleles can exist in the population’s gene pool. Theoretically, any base change will result in a new allele.

What is it called when a gene has more than two alleles?

Traits controlled by a single gene with more than two alleles are called multiple allele traits. An example is ABO blood type. Your blood type refers to which of certain proteins called antigens are found on your red blood cells.

When a single gene locus has more than two possible alleles?

Monogenic Traits: Multiple Alleles at a Single Gene Locus

Many genes have more than two alleles, and not all the alleles have equal dominance/recessiveness. Multiple alleles can result in polymorphism that might lead one to erroneously think that the trait is polygenic.

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

Although individual humans (and all diploid organisms) can only have two alleles for a given gene, multiple alleles may exist in a population level, and different individuals in the population may have different pairs of these alleles.

When more than two alleles control the inheritance of a character?

A gene can have more than two alleles or allelomorphs, which can be expressed by mutation in wild form in more than one ways. These alleles or allelomorphs make a series of multiple alleles. The mode of inheritance in case of multiple alleles is called multiple allelism.

When a gene has more than two alleles it is said to have quizlet?

Polygenic traits refers to any INHERITABLE TRAIT that is controlled by multiple genes, and each of those genes can have multiple alleles. Multiple alleles are made up or two or more alleles. How do multiple alleles and polygenic traits differ?

What is meant by multiple allele?

: an allele of a genetic locus having more than two allelic forms within a population.

When there are more than two alleles controlling the same character These are called?

Key terms

Term Meaning
Codominance Pattern of heredity in which both alleles are simultaneously expressed in the heterozygote
Multiple alleles A gene that is controlled by more than two alleles
Pleiotropy When one gene affects multiple characteristics
Lethal allele Allele that results in the death of an individual

When a single trait is affected by more than one gene locus this called quizlet?

Mendel observed the alleles can be dominant or ______, and the ______ allele typically masks the expression of the other allele. When a single trait is affected by more than one gene locus, this is called _________________. Polygenic inheritance.

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When a single trait is affected by more than one gene is called?

A polygenic trait is one whose phenotype is influenced by more than one gene. Traits that display a continuous distribution, such as height or skin color, are polygenic. … Many polygenic traits are also influenced by the environment and are called multifactorial.