BIOB51H3 Lecture Notes - Lecture 13: Balancing Selection, Dwarfism, Zygosity
2 Apr 2015
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Moving from one place to another is not enough for evolution to occur, what"s necessary is that they are interbreeding with other populations and bringing their genes to the population. Things that can cause changes in allele frequency. We have our mice and they have some allele frequency of 0. 5. If some individuals come from another population and interbreed with them, they bring their alleles with them and they introduce their alleles into the new gene pool. This changes the allele frequency of the alleles in the gene pool. If you go to mexico in canadian winter, you see these trees, and these trees are not covered in leaves but actually monarchs covering the leaves. These monarch butterflies migrate from north america to mexico often in 2 generation migration that can span the entire year or two. The old man predicted that these monarchs migrate to mexico every year. Not just the movement of organisms but gene flow.
