Two alleles represent a gene.
ETC- The paternal (fathers) allele is B (for brown eyes)
The mothers (maternal) is b ( for blue eyes)
The capital B is the dominant allele, lowercase b is recessive.
Therefore, a punnet square will show the offspring can be either hetrozygous or homozygous (recessive or dominant)
Alleles represent the charactersitic, while a gene is a segment of DNA where heredity is based.
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.
When two or more forms of a gene for a single trait exist, some forms of the gene may be dominant, while others may be recessive. Dominant alleles can mask the expression of recessive alleles in a heterozygous individual. This variation leads to different phenotypes depending on the combination of alleles an organism possesses.
Alleles
Two copies of a gene are called alleles. Alleles can be the same (homozygous) or different (heterozygous).
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.
A single-gene trait is a phenotypic trait controlled by two homologous alleles.
When there are heterozygous alleles for a gene thy code for a different expression of the gene. For example, the gene to taste PTC paper is a single gene trait. A person will have two copies (or alleles) for that gene (one from their mothers DNA, one from their father). There are two possible expressions for this gene - either you can taste the chemical or you cannot. When one allele is for tasting, and the other for not tasting, this is known as heterozygous. Both alleles are relating to the same gene but they giving different instructions and are thus not identical. When this happens, the dominant gene wins - in this case tasting is expressed. If the alleles are identical, they are known as homozygous and they are identical.
One example of a trait controlled by a single gene with two alleles is flower color in snapdragons. The gene responsible for flower color has two alleles: one for red flowers and one for white flowers.
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.
The two different molecular forms of a gene are called alleles.
When two or more forms of a gene for a single trait exist, some forms of the gene may be dominant, while others may be recessive. Dominant alleles can mask the expression of recessive alleles in a heterozygous individual. This variation leads to different phenotypes depending on the combination of alleles an organism possesses.
Alleles
Two copies of a gene are called alleles. Alleles can be the same (homozygous) or different (heterozygous).
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.
A gene pair that consists of a dominant allele and a recessive allele is called a heterozygous gene. A homozygous gene, meanwhile, is a gene pair consisting of two dominant alleles or two recessive alleles.
Each person has two alleles for an autosomal gene, one inherited from each parent. These two alleles together determine an individual's genotype for that gene.
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.