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What is a poly allelic trait?
A polyallelic trait is a trait controlled by multiple alleles (variants of a gene) at a single gene locus. This means there are more than two possible alleles that can influence the trait's expression, resulting in a range of phenotypic variations. This can lead to a complex inheritance pattern.
What is multiple aleles?
Multiple alleles indicates that either the study is being conducted on alleles at more than one gene locus, that the characteristic being studied is controlled by several alleles at different loci or that there are two or more alleles at a single gene locus.
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 is the difference between alleles and multiple alleles?
Alleles refer to different versions of the same gene. So a single gene can have multiple alleles. For example in fruit flies there is a single gene that controls eye color, and the eye color of the fly depends on the alleles they have for that gene (since they have two copies of every gene, being diploid). A polygenic trait refers to any inheritable trait that is controlled by multiple genes, and each of these genes can have multiple alleles. For example, eye color in humans is a polygenic trait. There are at least three different genes, each with multiple alleles, that determine eye color in humans. Polygenic traits don't follow patterns of mendelian inheritance. So in summation the difference is multiple alleles refers to different versions of one gene and polygenic traits refers to a single trait which is controlled by multiple genes (each with multiple alleles) Yes, or: Multiple alleles are "the existence of more than two alleles (versions of the gene) for a genetic traits. Polygenic traits are "[characteristics of organisms that are] influenced by several genes." So multiple alleles are more than two alleles for one trait, and polygenic traits are one trait that is influenced by multiple genes. This information came from my biology textbook, "Biology: Principles and Explorations" by Holt, Rinehart, and Winston.
What is multiple allele gene expression?
Multiple allele gene expression refers to a situation where a single gene has more than two alleles, or different versions of the gene, which can be expressed differently within an individual's genotype. This can lead to a wider range of possible phenotypic outcomes because each allele may contribute to the expression of a specific trait.
What is a poly allelic trait?
A polyallelic trait is a trait controlled by multiple alleles (variants of a gene) at a single gene locus. This means there are more than two possible alleles that can influence the trait's expression, resulting in a range of phenotypic variations. This can lead to a complex inheritance pattern.
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.
What are genes with three or more alleles called?
this makes no scientific sense. A gene (which determines a phenotypic trait) can only contain 2 alleles. However codominace allows for multiple alleles to be chosen from, but only 2 picked for a gene. Also, if multiple genes determine a phenotypic trait that's polygenic inheritance.
In ------ these are more than two alleles possible for a trait?
In multiple-allele inheritance, there are more than two alleles possible for a trait. This means that instead of just two versions of a gene (alleles), there can be multiple variations that influence the trait in different ways. Examples of traits with multiple alleles include blood type in humans and coat color in rabbits.
How inheritance by multiple alleles and polygenic inheritence are similar?
In both cases, traits are influenced by multiple genetic factors. Inheritance by multiple alleles involves the presence of more than two alleles for a particular gene, while polygenic inheritance involves the contribution of multiple genes to a single trait. Both types of inheritance result in continuous variation, with traits being influenced by the interaction of multiple genetic factors.
How is inheritance be multiple alleles and poly genic inheritance similar?
Multiple alleles is when there are more than 2 alleles in a single trait. In blood type, instead of either one dominant and one recessive type alleles, there is one recessive allele (type O) but two dominant alleles(type A and B). Polygenic inheritance is when more than one gene controls a single trait, such as height in which three genes are responsible.
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 are alleles represented in genetics and how do they contribute to the inheritance of traits?
Alleles are different forms of a gene that can be inherited from each parent. They contribute to the inheritance of traits by determining the specific characteristics an individual will have. Each trait is controlled by one or more alleles, with dominant alleles typically masking the effects of recessive alleles. The combination of alleles inherited from both parents determines an individual's genotype and ultimately their phenotype, or observable traits.
A gene is said to have multiple alleles if it has more than how many alleles?
A gene is said to have multiple alleles if it has more than two different forms or variants (alleles). This means there are more than two variations of the gene present in a population.
What are the differences between a long allele and a short allele in terms of genetic inheritance?
Long alleles and short alleles refer to different versions of a gene that can be inherited from parents. The main difference between them lies in the number of repeated sequences within the gene. Long alleles have more repeated sequences, while short alleles have fewer. This difference can affect how the gene is expressed and can influence traits or characteristics passed down from parents to offspring.
When a gene has more than two alleles the condition is known as?
multiple alleles
What is it called when there are more than two alleles present in a population?
Chromosomes are made of tightly wound DNA and protein. Genes are found along the length of chromosomes. A gene is a segment of DNA that contains instructions for making a specific protein or proteins required by the body. Human beings have about 30,000 - 35,000 genes. We have two copies of each gene, but the copies can be slightly different. For example, the gene associated with cystic fibrosis has more than 1000 different variations. Different versions of the same gene are called its alleles, and everyone has two alleles for each gene. (Males have only one X chromosome, so they only have one copy of the genes located on the X chromosome.)
