Here's a breakdown:
* Gene: A segment of DNA that codes for a specific trait.
* Allele: A specific version of a gene. For example, the gene for eye color might have alleles for blue eyes, brown eyes, or green eyes.
* Genotype: The combination of alleles an organism has for a particular gene. For example, an organism might have two alleles for brown eyes, or one allele for brown eyes and one allele for blue eyes.
* Phenotype: The physical expression of the genotype. For example, the phenotype for eye color could be brown eyes, blue eyes, or green eyes.
In simpler terms:
Imagine a gene is like a recipe for a cake. The alleles are different versions of the recipe, each resulting in a slightly different cake. The genotype is the actual recipe you're using, while the phenotype is the actual cake you bake.
