Advancements in genetics have changed how we think about evolution. They connect how traits are passed down with our ideas about how evolution works.
Modern Synthesis: When scientists combined genetics with Darwin's ideas about evolution, they created what we call the modern synthesis. This shows us that evolution is more than just natural selection; it also involves the differences in genes within groups of living things.
Gene Variation: Changes in genes, known as mutations, can cause different traits. Some of these changes can be helpful, some can be neutral (not helpful or harmful), and some can be harmful. A good example of this is bacteria becoming resistant to antibiotics. A simple change in their genes can give them a big advantage.
Gene-Environment Interaction: The environment is also really important in evolution. A famous example is the peppered moth. Its color changed during the Industrial Revolution because of both genetic differences and changes in its surroundings.
In short, genetics has shifted our thinking. We now focus not just on what organisms look like but also on understanding the genetic parts that drive evolution. This highlights how genes and the environment work together in the process of evolution.
Advancements in genetics have changed how we think about evolution. They connect how traits are passed down with our ideas about how evolution works.
Modern Synthesis: When scientists combined genetics with Darwin's ideas about evolution, they created what we call the modern synthesis. This shows us that evolution is more than just natural selection; it also involves the differences in genes within groups of living things.
Gene Variation: Changes in genes, known as mutations, can cause different traits. Some of these changes can be helpful, some can be neutral (not helpful or harmful), and some can be harmful. A good example of this is bacteria becoming resistant to antibiotics. A simple change in their genes can give them a big advantage.
Gene-Environment Interaction: The environment is also really important in evolution. A famous example is the peppered moth. Its color changed during the Industrial Revolution because of both genetic differences and changes in its surroundings.
In short, genetics has shifted our thinking. We now focus not just on what organisms look like but also on understanding the genetic parts that drive evolution. This highlights how genes and the environment work together in the process of evolution.