Well every gene in the human genome codes for something different. The fact that variety exists is determined by the alleles of that gene. The human genome has over 35,000 genes that all work together to form a persons genotype. Observable features are an organisms phenotype and those are composed of different traits, i.e. eye color, hair color, certain behaviors. All of these are also coded for by specific genes.
A heterozygous has 2 different alleles for a trait.
A trait that is not expressed when another is present is referred to as a recessive trait.
Incomplete dominance is a trait that can result when an organism receives genes for two different forms of the same trait. In this case, neither form of the trait is fully expressed, leading to a blending of the two forms.
a phenotype is the physical characteristics of an organism based on its genotype.
epistasis
A heterozygous has 2 different alleles for a trait.
An organism with two like alleles for a trait is homozygous for that trait.
An organism that has genes that are alike for a particular trait is called homozygous for that trait. This means that it has two identical alleles for that specific gene.
What is heterozygous? Your inherited characteristics are determined by your genes. Zygosity refers to the similarity of genes for a trait in an organism. If both genes are different, the organism is heterozygous (hetero = different) for that trait. If both genes are the same, the organism is homozyous (homo = same).
An organism with two like genes for a trait is called homozygous for that trait.
Heterozygous.
A trait that is not expressed when another is present is referred to as a recessive trait.
Alleles are forms of genes for a trait.
genes and the environment
Incomplete dominance is a trait that can result when an organism receives genes for two different forms of the same trait. In this case, neither form of the trait is fully expressed, leading to a blending of the two forms.
Non-allelic genes are genes located on different chromosomes that do not directly influence each other. They can affect the expression of a specific trait in an organism through independent pathways, leading to a combination of different genetic factors influencing the trait.
A trait is a specific characteristic of an organism. Traits can be determined by genes or the environment, or more commonly by interactions between them. The genetic contribution to a trait is called the genotype. The outward expression of the genotype is called the phenotype.