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Dominant and Recessive Alleles Diploid organisms typically have two alleles for a trait. When allele pairs are the same, they are homozygous. When the alleles of a pair are heterozygous, the phenotype of one trait may be dominant and the other recessive.
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When than two alleles control a trait?
The presence of more than two alleles that control a trait is called multiple allele. An example of this is the group gene of ABO blood that has three alleles.
The two or more related genes that control a trait are known as?
alleles
What oranism has two different alleles for a trait?
An organism that possesses two different alleles for a trait is said to be heterozygous for that trait.
When more than two different alleles control a trait?
This phenomenon is known as multiple allelism, where there are more than two different variations of a gene (alleles) that can affect a single trait. In this case, individuals can inherit one of several possible alleles for the trait. Examples include the ABO blood group system in humans, where there are three alleles (IA, IB, i) that determine a person's blood type.
How do multiple alleles control the trait?
In the case of multiple alleles, one trait is governed by more than two alleles. One example is the human ABO blood group. There are three alleles, A, B, and O. A person can, however, only inherit two of the three alleles.
What has two identical alleles for a trait?
Homozygous individuals have two identical alleles for a specific trait. This means they can be either homozygous dominant (two dominant alleles) or homozygous recessive (two recessive alleles). Homozygosity results in the expression of either the dominant or recessive trait.
A trait produced from two alleles that are alike is?
A trait produced from two alleles that are alike is called homozygous. Homozygous alleles are identical forms of a gene and can be either dominant or recessive. Homozygous dominant means having two dominant alleles, while homozygous recessive means having two recessive alleles for a particular trait.
When a pair of chromosomes contains different alleles for a trait that trait is called a what when a trait has two identical alleles it is called?
2 different alelles - heterozygous Same alelles - homozygous
Organism that have two identical alleles for a particular trait are said to be?
Organisms that have two identical alleles for a particular trait are said to be? homozygous
How many alleles for one trait are normally found in the genotype of an organism?
An organism has two alleles for one trait. If the two alleles are the same, the individual is homozygous for that trait, and if they are different, the individual is heterozygous.
What are the two terms for having matching alleles for a certain trait?
The two terms for having matching alleles for a certain trait are "homozygous dominant" (two dominant alleles) and "homozygous recessive" (two recessive alleles).
What is the likelihood of inheriting a genetic trait with more than two alleles, and how does the presence of multiple alleles impact the expression of the trait?
The likelihood of inheriting a genetic trait with more than two alleles is rare. When a trait has multiple alleles, it can result in a wider range of possible expressions of that trait. This can lead to more variation in the phenotype among individuals who inherit different combinations of alleles for that trait.
