They are called Polygenic Traits.
Polygenic Traits
Polygenic Traits
A trait that is controlled by more than one gene is called polygenic. This means that multiple genes contribute to the expression of the trait, leading to a continuous range of phenotypic variation. Examples of polygenic traits include height, skin color, and intelligence.
or one gene, all by its lonesome.
Traits or characteristics that are controlled by a single gene, such as blood type or certain genetic disorders, are typically more strongly inherited than traits that are influenced by multiple genes or the environment, such as height or intelligence. These single-gene traits are passed down in a predictable manner from parents to offspring.
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 mulitple genes. This information came from my biology textbook, "Biology: Principles and Explorations" by Holt, Rinehart, and Winston.
dominant
Mendelian traits are:simple single traits controlled entirely by one genecaused by a gene with simple dominant and recessive allele formsA Mendelian trait would not involve more than one gene, nor would it involve genes with more than two allele forms.
No, they are controlled by only two or more traits
Breathing, for one. Mindfulness is another. Respiration is the best example of this when it is considered to be a single trait. There are many less complex instances, yet all are 'highly biochemically involved'.
Mendelian traits are:simple single traits controlled entirely by one genecaused by a gene with simple dominant and recessive allele formsA Mendelian trait would not involve more than one gene, nor would it involve genes with more than two allele forms.
Traits controlled by two or more genes are called polygenic traits. In polygenic inheritance, multiple genes work together to produce a particular phenotype, resulting in a wide range of possible variations. Examples include height, skin color, and eye color in humans.