Examlex
Which of the following is a central nervous system depressant?
Homoplasy
Homoplasy describes a character state similarity not due to shared descent (for example, produced by convergent evolution or evolutionary reversal).
Orthologs
Genes in different species that evolved from a common ancestral gene and retain the same function.
Paralogs
Genes that are related by duplication within a genome and can evolve new functions, despite having a common ancestor.
Species Tree
A conceptual tree diagram that shows the evolutionary relationships among various species based upon their genetic differences and similarities.
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