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| an organism’s full set of genes and non-coding portions of DNA |
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| similarity due to common ancestry |
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| a group of related genes that control the body plan of an embryo along the anterior-posterior |
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| a common 180 bp sequence in Hox genes and many other transcription factor genes |
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the 60 amino acid sequence coded by the homeobox
Its transcription factor! (it binds to specific DNA sequences in the promoters of target genes |
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| Parallel Phenotypic Evolution |
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Definition
Many developmental genes exist in similar form across a wide range of species.
Highly conserved developmental genes make it likely that similar traits will evolve repeatedly |
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| The majority of most eukaryotic genomes consist of non-coding regions, sometimes described as _____;. |
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| a group of related genes which evolve via duplication |
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| the study of evolutionary relationships among organisms |
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| The area on a stem where each leaf is attached. |
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| an internal node corresponding to the most recent common ancestor to ALL species at the tips of the tree |
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| A group of organisms containing a common ancestor and all its descendants; a monophyletic group. |
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| analogous features/characters |
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| structures that have similar functions and superficially similar appearance but very different anatomies |
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| The independent evolution of structural or functional similarity in two or more distantly related species, usually as a result of adaptations to similar environments. |
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| Homologous traits found in two or more taxa that are present in their most recent common ancestor but not in earlier common ancestors. |
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| Homologous traits found in two or more taxa that are present in their most recent common ancestor but not in earlier common ancestors. |
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| A trait that arose in the ancestor of a phylogenetic group and is present in all of its members, thus helping to delimit and identify that group. |
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| In a cladistic study of evolutionary relationships among taxa of organisms, the group of taxa that is actually being analyzed |
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| A species or group of species that is closely related to the group of species being studied, but clearly not as closely related as any study-group members are to each other |
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| a system for giving each organism a two-word latin name that consists of the genus name followed by the species name |
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