Here's a breakdown:
* Genes: These are segments of DNA that contain the instructions for building and maintaining an organism.
* Alleles: These are different versions of the same gene. You inherit one allele from each parent, so you have two alleles for every gene.
* Traits: The actual physical or biochemical characteristics you express are determined by the combination of alleles you inherit.
Example:
* Gene: Eye color
* Alleles: Brown (B), Blue (b)
* Possible combinations:
* BB: Brown eyes (both alleles contribute to the brown eye color)
* Bb: Brown eyes (the brown allele is dominant, so it masks the blue allele)
* bb: Blue eyes (both alleles contribute to the blue eye color)
So, alleles determine the specific version of a trait you inherit.
