An example of an allele is the gene that determines hair color. Either of a pair of genes located at the same position on both members of a pair of chromosomes and conveying characters that are inherited in accordance with Mendelian law. Any of the possible forms in which a gene for a specific trait can occur.
What are some examples of allele?
Gene vs allele: chart
|Determines||An organism’s genotype||An organism’s phenotype|
|Number per genus locus||One||Two|
|Various Types||Alleles||Paternal vs maternal Dominant vs recessive|
|Examples||Eye color, hair color, skin pigmentation||Blue eyes, brown hair, dark skin|
What is allele with example?
Alleles are a pair of genes that occupy a specific location on a particular chromosome and control the same trait. … A pair of alleles determine the same trait, for example, eye color; one allele codes for black eyes, and another allele codes for brown eyes.
What is the most common allele for any trait?
The most common allele for any trait is always the dominant allele.
Is an allele A trait?
A single gene may consist of alternative forms known as alleles. Each allele consists of slight differences in their nucleotide sequence. … The main difference between allele and trait is that an allele is an alternative form of a particular gene whereas a trait is the character that is determined by the allele.
Is TT an allele?
If an organism has two different alleles (Tt) for a certain gene, it is known as heterozygous (hetero means different).
Genotype and Phenotype.
|Heterozygous||One dominant allele and one recessive allele||Tt|
|Homozygous dominant||Two dominant alleles||TT|
Is eye color an allele?
Eye color is not an example of a simple genetic trait, and blue eyes are not determined by a recessive allele at one gene. Instead, eye color is determined by variation at several different genes and the interactions between them, and this makes it possible for two blue-eyed parents to have brown-eyed children.
Which is an allele?
An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. … Alleles contribute to the organism’s phenotype, which is the outward appearance of the organism. Some alleles are dominant or recessive.
How do you explain alleles to a child?
Allele – While the section of DNA is called a gene, a specific pattern in a gene is called an allele. For example, the gene would determine the hair color. The specific pattern of the hair color gene that causes the hair to be black would be the allele. Each child inherits two genes for each trait from their parents.
Is the most common allele for any trait is always the dominant allele?
The most common allele for any trait is always the dominant allele. Genotypes are the outward expression of an allele combination. four phenotypes. … In the ABO blood type system, there are six possible genotypes, but only two possible phenotypes.
Which is an example of multiple alleles?
Two human examples of multiple-allele genes are the gene of the ABO blood group system, and the human-leukocyte-associated antigen (HLA) genes.
Which alleles are present in an individual for a trait?
Within an individual organism, the specific combination of alleles for a gene is known as the genotype of the organism, and (as mentioned above) the physical trait associated with that genotype is called the phenotype of the organism.
What is an allele in simple terms?
An allele is one of two or more versions of a gene. An individual inherits two alleles for each gene, one from each parent. If the two alleles are the same, the individual is homozygous for that gene.
What is an example of multiple alleles trait What are the alleles that control that 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.
|Genotype||Phenotype (blood type)|
What is the best definition of allele?
An allele is one of a pair of genes that appear at a particular location on a particular chromosome and control the same characteristic, such as blood type or color blindness. Alleles are also called alleleomorphs. Your blood type is determined by the alleles you inherited from your parents.