EVE 100 Study Guide - Comprehensive Final Exam Guide - Evolution, Synapomorphy, Phylogenetic Tree
20 Nov 2018
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Phylogenetics continued: challenges with modern phylogenetic analysis, lots of data both # of taxa and data/taxon, genotyping errors, potentially high levels of homoplasy and reversal, different evolutionary rates, real evolution is messy. It causes us to underestimate the number of changes that actually occurred which means our estimates are lower than they should be. Meaning they saw genetic variation and phenotypic generation as mostly being composed of continuous traits (like height, milk production, weight/size etc. : mendelians they saw large effects. If a base pair is simply switched, the biggest change could be in the amino acid (or by ending the amino acid change if a stop codon is created: snps single nucleotide polymorphisms, widespread throughout the genome. There are billions of new genetic variants in each generation. Inbreeding tends to cause individuals to become more homozygous at. All loci: h0 = the h-w expected heterozygosity, f ranges between 0 and 1, f = inbreeding coefficient, ==(cid:4666)0 (cid:4667)
