| Parameter | Dominant | Recessive |
|---|
| Expression | Traits that are expressed in individuals even when one allele is present | Expression of the traits in an individual occurs only when both the recessive alleles are present in an individual |
| Representation | The capital letter is used for denoting a dominant allele | The small letter is used for denoting a recessive allele |
| Examples in Pea Plants | Round seeds, Tall plants, White flowers | Wrinkled seeds, Short plants, Violet flowers |
| Examples in Humans | Dark hair, Brown eyes, V-shaped hairline, Right handedness, Detached earlobes, Almond-shaped eyes | Blonde and red hair, Blue eyes, Straight hairline, Left-handedness, Attached earlobes, Round eyes |
| Examples in Drosophila | Brown body color, Red eyes | Black body color, Brown eyes |