Here's why:
* Gene: A segment of DNA that codes for a specific protein, which in turn influences a particular trait.
* Trait: A specific characteristic of an organism, such as eye color, hair color, height, or disease susceptibility.
Traits can be influenced by:
* Single genes: These traits are often called Mendelian traits, following the principles of Gregor Mendel's work with pea plants.
* Multiple genes: Many traits are influenced by the interaction of several genes, making them more complex to study.
* Environmental factors: While genes provide the blueprint, the environment can also play a role in shaping traits.