What enhances the genetic fitness of an organism?

The enhancement of genetic fitness in an organism is primarily related to having an advantageous phenotype. When an organism possesses traits that provide an advantage in a particular environment, it is more likely to survive and reproduce successfully. This advantageous phenotype allows the organism to compete effectively for resources, evade predators, attract mates, and adapt to changes in its environment. As a result, the genes associated with these beneficial traits are more likely to be passed on to the next generation, thereby increasing the overall genetic fitness of the population.

This concept of advantageous phenotypes ties directly to the theory of natural selection, where those individuals with traits that confer a survival or reproductive advantage will increase in frequency within a population over time, leading to greater adaptation and fitness. In contrast, traits that do not provide such advantages do not contribute positively to genetic fitness.