Variations
Phenotypes
Phenotypes
the number of genes that usually determine a trait
it is because they have genes
some human traits show a large number of phenotype because the traits are controlled by many genes. The genes act together as a group to produce a single trait
The least number is 2, however this is very rare. Most traits require many genes to produce a trait.
A dominant trait is expressed when two different genes for the same trait are present.
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
domanant trait
A trait controlled by many genes
The number of phenotypes produced for a given trait depends on how many genes control the trait.
genes and the environment