the trait for blue eyes in humans is caused by a recessive allele if this gene is named e, what is the genotype of a blue - eyed person
If the trait for blue eyes in humans is caused by a recessive allele and this allele is designated as "e," then a person with blue eyes must have two copies of the recessive allele. This is because blue eyes will only manifest if there are no dominant alleles to express a different eye color (such as brown).
Therefore, the genotype of a blue-eyed person would be "ee," where both alleles are the recessive form associated with blue eye color. Remember that human eye color is actually determined by multiple genes, and this simple dominant-recessive explanation is a simplification for basic genetics education. The genetics of eye color can be more complex, involving interactions between multiple alleles across several genes.