Here's how:
* Darwin's theory of evolution by natural selection explained how organisms change over time, adapting to their environment. However, it lacked a clear mechanism for how these changes were passed on to the next generation.
* Mendel's work on inheritance provided the missing link. He demonstrated that traits are passed down in discrete units, later called genes. This explained how variations within a population could be preserved and passed on, providing the raw material for natural selection.
In essence, Darwin's theory explained the "what" of evolution, while Mendel's work explained the "how." Together, they formed the foundation of modern evolutionary biology, illustrating how variation arises through inheritance and is then acted upon by natural selection, driving evolutionary change.
Here's a simplified breakdown:
1. Mendel's work showed how heritable traits are passed on from parents to offspring.
2. Darwin's theory showed how variation in those traits affects an organism's ability to survive and reproduce (natural selection).
3. Together, they demonstrate how evolutionary change happens over generations through the interaction of heredity and natural selection.
The integration of Mendel and Darwin's work revolutionized biology, leading to the understanding that evolution is a continuous process driven by the inheritance of genetic variations and their subsequent selection by the environment.
