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Therefore, the main difference between dominant and recessive genes is that dominant genes always express the dominant trait while recessive genes express the recessive trait. Moreover, both types of genes can cause genetic diseases.ĭifference Between Dominant and Recessive Genes Definitionĭominant genes refer to the genes responsible for the expression of the dominant character while the recessive genes refer to the genes responsible for the expression of the recessive character.First, dominant and recessive genes are the two types of factors responsible for the determination of a trait.

Similarities Between Dominant and Recessive Genes An example of a dominant trait is the red color flowers in pea. Moreover, it has no effect from the recessive gene for the expression of the dominant trait. Therefore, the dominant gene masks the effect of the recessive gene in the heterozygous condition. The expression of the dominant trait occurs when two dominant genes occur in the gene pair (homozygous dominant) and when only one dominant gene occurs in the gene pair while the other gene is recessive ( heterozygous). – Comparison of Key Differences Key Termsĭominant Genes, Dominant Trait, Mendelian Genetics, Recessive Genes, Recessive Traitĭominant genes are the genes that always express the dominant trait. What is the Difference Between Dominant and Recessive Genes What are the Similarities Between Dominant and Recessive GenesĤ. The three possible gene pairs are the homozygous dominant (AA), homozygous recessive (aa), and the heterozygous (Aa) pairs. Genes/factors which determine a particular character always occur in pairs. Furthermore, the dominant genes are more likely to pass to the future generation while the recessive allele is less likely to pass to the future generation.ĭominant and recessive genes are the two forms of genes classified based on the ability to express over the other gene. The main difference between dominant and recessive genes is that the dominant genes always express the dominant trait whereas the recessive genes express the recessive trait.