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Multiple alleles can result in many different phenotypes for a trait because each allele codes for a different version of a gene, leading to a variety of possible combinations and expressions of traits in an individual.

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7mo ago

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What is the condition whereby a trait is determined by three or more alleles called?

The condition whereby a trait is determined by three or more alleles is called multiple allelism. Multiple alleles refer to the presence of more than two alleles of a gene within a population. This can result in various combinations of traits and phenotypes.


How many different phenotypes can be produced from intercrossing parents of genotype AaB1B2?

Four different phenotypes can be produced: AABB, AABb, AaBB, and AaBb. This is the result of different combinations of alleles from each parent in the offspring.


Why do you have more genotypes than phenotypes?

The number of possible genotypes is typically higher than the number of observable phenotypes because multiple genotypes can result in the same phenotype due to genetic variations, interactions, and environmental factors. Different combinations of genotypes and environmental influences can lead to similar outward traits, resulting in fewer distinct phenotypes than genotypes.


What is it called when the presence of two different alleles result in an intermediate?

Incomplete Dominance


What traits are controled by a gene with multiple alleles?

Traits controlled by a gene with multiple alleles can vary in terms of expression or phenotype. For example, human blood type (A, B, AB, O) is controlled by a gene with multiple alleles. The different alleles can result in different phenotypes (A, B, AB, O) for the same trait.


What are the multiple forms of genes called?

Alleles are genes that exist in multiple forms.


What does a trait with four alleles have?

A trait with four alleles means there are four different versions of that gene present in the population. This increases the genetic diversity of individuals for that trait, leading to a wider range of possible phenotypes. The presence of multiple alleles can result in more complex patterns of inheritance, such as incomplete dominance or codominance.


What are traits that have three or more phenotype may be the results of alleles?

Traits that exhibit three or more phenotypes are often influenced by multiple alleles, which are different forms of a gene. A classic example is the ABO blood group system in humans, where three alleles (I^A, I^B, and i) result in four possible phenotypes: A, B, AB, and O. Similarly, traits like coat color in certain animals can show multiple variations due to the interaction of several alleles. This genetic complexity allows for a wider range of observable traits in a population.


What happens when two alleles combine?

When two alleles combine, they create the genotype of an individual. This genotype determines the physical and biochemical traits of the organism. The combination of alleles can result in different phenotypes, which are the observable characteristics of an individual.


Heterozygus phenotypes show qualities of both alleles?

Yes, that's correct. Heterozygous individuals have two different alleles at a specific gene locus, and they can express traits from both alleles. This can result in a combination of traits or an intermediate phenotype that differs from either homozygous condition.


How a gene with multiple alleles can produce more than three phenotypes use blood as an example?

A gene with multiple alleles can produce more than three phenotypes because each allele can result in a different blood type. In the ABO blood group system, there are three alleles (IA, IB, i) that determine the presence of antigens on red blood cells, leading to four possible blood types (A, B, AB, O). The combination and expression of these alleles determine the individual's blood type phenotype.


What is multiple allilism?

Multiple allelism is a genetic phenomenon where a single gene has more than two alleles within a population. Unlike simple Mendelian traits, which are determined by two alleles (one from each parent), multiple allelism allows for a range of variations in phenotypes. This can lead to a greater diversity of traits, as seen in blood types in humans, where the ABO gene has three alleles: A, B, and O. The interaction of these alleles can result in different blood type combinations among individuals.