1.1An imaginary branching, treelike structure representing the evolutionary divergence of all living creatures.
- The effort to produce a Tree of Life - a ‘correct and verifiable family tree’ of all life, both living and extinct - is unquestionably big science.
- Thanks to collaboration among systematists to resolve the avian tree of life, large morphological and molecular character matrices for neornithine birds are nearing completion.
- Major episodes of gene duplication occurred at the base of the tree of life, in the ancestor of vertebrates, and again in the ancestor of teleost fishes, in plants, and in other eukaryotes such as yeast.
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