Theory
Consider two distinct haploid organisms who differ at a single nucleotide. By tracing the ancestry of these two individuals backwards there will be a point in time when the MRCA is encountered and the two lineages will have coalesced.
Read more about this topic: Coalescent Theory
Famous quotes containing the word theory:
“OsteopathOne who argues that all human ills are caused by the pressure of hard bone upon soft tissue. The proof of his theory is to be found in the heads of those who believe it.”
—H.L. (Henry Lewis)