Microevolution happens on a small scale (within a single population), while macroevolution (which we will be talking about in Chapter 15) happens on a scale that transcends the boundaries of a single species. Despite their differences, evolution at both of these levels relies on the same, established mechanisms of evolutionary change.Today (and tomorrow for C & D blocks) we are wrapping up chapter 13, which includes microevolution. The key things that we are focusing on today are:
* Microevolution is a change in a population's gene pool over time.
* What the Hardy-Weinberg Equation is and how it is used in public health
* Causes of microevolution
* Real examples for the bottleneck & founder effects.
* Polymorphism in populations
* Geographic variation (clines)
You will need to finish the last five pages of chapter 13 for homework. The last page in your packet lists the key concepts and terms for those five pages, there is space provided for you to take notes.
Once you are finished taking notes, take the self quiz located in the “Evolution” sidebar, click on Self Quiz on Evolution. Just guess for question numbers 3, 11, 20 and 22-25 (you are not responsible for this information). You need to answer all the questions if you want to see what the correct answers are.
This is a great way for you to see if you actually understand the material. Try to answer the questions without looking at your notes.
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