Evolution

Explanations of Darwin’s theory of evolution, survival of the fittest, microevolution, macroevolution, and population genetics.

Population genetics

Population Genetics

This video explains how to use the Hardy-Weinberg equations to predict genotype frequencies in a population that is not evolving. https://youtu.be/Z4gW7W4t994 Time stamps Review of terminology 0:32 Hardy-Weinberg equilibrium factors 1:57 Alleles in a population 3:22 The 2 equations 5:52 Example 1 – calculate using the equations 7:54 Example 2 10:29 Example 3 11:16 Example …

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macroevolution

Macroevolution

This video describes the mechanisms that drive macroevolution and includes fossils, anatomy, and molecular sequences, as well as human evolution. https://youtu.be/F7rR0cWAqRA Time stamps Macroevolution definition 0:24 Darwin’s finches and iguanas 1:50 Rate of evolution 3:19 Fossils 4:10 Human taxonomy 5:43 Human evolution timeline 6:50 Comparing anatomy 9:50 Comparing molecular sequences 12:20 Not all species evolve …

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survival of the fittest

Microevolution

This video discusses the mechanisms that cause microevolution changes in populations and includes selection pressures, and survival of the fittest. https://youtu.be/w2qSqUuWBXI Time stamps Microevolution definition 0:25 Evolution vs adaptation 1:10 Darwin’s Theory – Factors that affect evolution 2:38 Selection pressures 5:36 Antibiotic resistance 10:24 Lamarck and giraffes and epigenetics 12:31 Artificial selection – dog and …

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