1)Can you suggest reasons why a phylogeny based on molecular evidence and a phylogeny
based on morphology and other evidence might not be exactly the same?
2) Zoologist worldwide are sequencing a mitochondrial gene CO1 (cyctochrome c oxidase
subunit), which is found in all animals and appears to be distinctive for each species. The
sequence of nucleotides can be used as a universal DNA bar code. By comparing the CO1 DNA
sequence for an animal to a growing database of DNA sequences, scientists can accurately
identify any animal and also discover species not previously known to science. How might DNA
bar coding, which uses molecular biology and bioinformatics, be useful in enforcing
international laws for banning the import of endangered species? How might these approaches
stimulate the study of biodiversity in remote areas?
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