Biology Help | Fundamentals

Fundamentals
What is a cladogram?
This question is answered in: What do the different branch lengths on a phylogeny mean?
What do the different branch lengths on a phylogeny mean?
Answered in the following Video: &lt;br&gt; When it comes to how to read a phylogenetic tree, the branch lengths can mean very different things, depending on the phylogeny. On a Cladogram, the branch lengths are meaningless and they are only ...
What does MRCA (Most Recent Common Ancestor) mean, and how do I find it on a tree?
The most recent common ancestor is the furthest internal node that connects two or more tips/groups. You’ll often see Most Recent Common Ancestor abbreviated as MRCA. Heres an excerpt from our Reading Phylogenetic Trees course. See the full lesson ...

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