The number of phenotypes produced for a given trait depends on how many genes control the trait.
Environment (that means for example changing your hair color or living in a sunny place) and the genetics your parents gave you. Those combined form your phenotype.
THE NUMBER OF PHENOTYPES PRODUCED FOR A GIVEN TRAIT DEPENDS ON HOW MANY GENES CONTROLL THE TRAIT.
EX: WIDOWS PEAK IS A SINGLE-GENE TRAIT, IT IS CONTROLLED BY A SINGLE GENE THAT HAS TWO ALLELES
Alleles
The number of phenotypes produced for a given trait depend on how many genes control the trait. Single-gene trait: has two alleles. Fur has 1
Phenotypes
Phenotypes
Aa AA aa If A dominant, two phenotypes.
the number of genes that usually determine a trait
A discrete trait is a trait which doesn't have a range of phenotypes. For example, tongue rolling is a discrete trait as an individual can either roll their tongue or not roll their tongue. There is no phenotype between these two phenotypes.
codominance or incomplete dominance
Phenotypes
You can see the phenotype. A good way to remember is that a photograph is what you see. The genotype is the graphic representation of the trait.
DNA determines a specific trait.
the offspring have two factors for each trait