10 lecture Feb 19

10 lecture Feb 19 - Evolutionary Biology Tree of Life...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Evolutionary Biology Tree of Life Theory Natural Selection Theory Testing the theory Misunderstandings about theory Using the theory to explain puzzling traits For more on evolutionary theory, see Course Documents For exam answers and scores, see Blackboard (Class average = 78) Anyone with an exam score of less than 70, please contact me. Natural selection theory Variation + Heredity + Effects on reproductive success = Evolutionary change Testing the theory 1. Prediction - hereditary variation must have been common in the past. Test evidence – hereditary variation is very common now. Testing the theory of natural selection 2. Prediction : When populations have hereditary variation that affects the reproductive success of individuals, evolutionary change will occur. Test evidence : The effects of domestication Domestication is an experimental test of natural selection theory
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Domestication Natural selection Species with hereditary Species with hereditary variation variation Some individuals are Some individuals allowed to reproduce reproduce more Evolution: Breed Evolution: Species becomes more like becomes more like favored individuals favored individuals Why was it important for Darwin to show that all the different domesticated pigeons came from 1 species, the rock dove? Why was it important for Darwin to show
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 9

10 lecture Feb 19 - Evolutionary Biology Tree of Life...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online