KnowraLast universal common ancestorLinked fromLinked fromThe 13 pages that link to Last universal common ancestor, each with the reason it gives.All 13Broader topic 2Related 6Narrower topic 4Compared with 1Horizontal gene transferRelated: Extensive early gene exchange complicates estimates of this ancestor's genes and biology.Origin of lifeCompared with: It is a later point in life’s history, not the first life, and its properties only indirectly constrain origins.Common descentBroader topic: It is the deepest shared ancestor implied for life as it exists today.PrecambrianRelated: Its existence implies an earlier evolutionary history that Precambrian evidence only partly records.Stem groupRelated: Common-ancestor reasoning underlies the branching relationships used to define crown groups.Chemical evolutionBroader topic: It marks a later biological stage, leaving earlier chemical transitions unrecorded directly.Aminoacyl-tRNA synthetaseNarrower topic: The broad distribution of synthetase families makes them clues to ancient cellular evolution.Life (biology)Related: Evidence about LUCA constrains the nature of early life, but does not identify life's first origin.History of lifeRelated: Its biology and age are inferred indirectly from traits shared across living organisms.EukaryotaNarrower topic: Eukaryotic origins ultimately connect to the common ancestry of all cellular organisms.Evolution of sexual reproductionNarrower topic: Evidence of ancient sexual machinery is often assessed against the biology of this ancestor.Earliest known life formsRelated: It was already part of life’s history, but its age cannot be read directly from the oldest fossils.Evolution of bacteriaNarrower topic: It provides a broad evolutionary reference point, though it was not necessarily a single cell.