Molecular Clocks, Part 2: Practice

Here we will look at how a molecular clock analysis is actually done (in no great detail). The first step is gathering molecular data. You have to choose relevant taxa and appropriate outgroups. The outgroups are basically there as a calibration. Then you choose what you will be basing your …

Molecular Clocks, Part 1: Hypothesis

This is meant as an introduction to the molecular clock hypothesis. As a disclaimer, I have to say that I am a zoologist and palaeontologist, not a specialist on genomes. Anything stated in this series is based in organismal biology. The molecular clock hypothesis was first proposed by Zuckerkandl and …