BIOLOGY 1M03 Chapter Notes - Chapter 27: Rodent, Dietitian, Dna Barcoding
12 Oct 2016
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Neither are more related o gibbons because they all come from the same ancestor. Anyone within a group is more related than species outside of the group. Cladistic appraoch, or simipliest approach to inferring a phylogeny. Shared new characteristics found in a clade of organisms have and anyone outside of the clade do not have it. Nipples are a innovation happening within mammals (another example is placate) All acquired the ability to locate, hair, sweat glands. All still had to have hair, sweat glands, lactate. Do not accept this because its more complicated. 4 speices, help see changes in nucleotide sequences. 1 and 2 more closely related than 3 and 4 are related. One experienced mutation to change a to c and g to c. Marks show mutations, happen on branches not nodes. Phylogency looks different because one has no mutation. How many changes for the phylogeny to show the data. Less parsimonious, so we expect the former.
