Examlex
Terisa is pregnant and experiencing nausea. This is because of increased activity of _____.
Paralogs
Genes within the same organism that have evolved by duplication and may have different functions.
Gene Family
A group of genes sharing a common origin that typically encode proteins with similar functions.
Molecular Clock
A method used to determine time based on base pair substitutions. Molecular clocks use the rates of molecular change to deduce the divergence time between lineages in a phylogeny, for example. They work best when they can be “calibrated” with other markers of time, such as fossils with known ages and placements.
Synapomorphy
A trait that is shared by two or more taxa and their most recent common ancestor, used to infer evolutionary relationships.
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