Here's how it works:

* Each trait is determined by two copies of a gene, one inherited from each parent.

* Recessive genes only express their trait if an individual inherits two copies of the recessive allele. If they inherit one copy of the recessive allele and one copy of the dominant allele, the dominant allele will mask the effect of the recessive allele.

Example:

* Eye color is a classic example. Brown eyes are dominant over blue eyes.

* If someone inherits one gene for brown eyes (dominant) and one gene for blue eyes (recessive), they will have brown eyes.

* They carry the gene for blue eyes, but it's hidden by the dominant brown eye gene.

* They are considered a carrier of the recessive gene.

* If they have a child with someone who also carries the gene for blue eyes, there is a 25% chance that their child will have blue eyes.

Other examples of recessive traits include:

* Cystic fibrosis

* Sickle cell anemia

* Albinism

It's important to note that some traits are influenced by multiple genes, not just one, making their inheritance patterns more complex. However, the concept of recessive genes still applies in many cases.