BIOL 150 Study Guide - Midterm Guide: Glycolysis, Pyrophosphate, Syphilis
Document Summary
What is a molecular clock? is a technique in molecular evolution that uses fossil constraints and rates of molecular change to deduce the time in geologic history when two species or other taxa diverged. It is used to estimate the time of occurrence of events called speciation or radiation. If a global molecular clock is assumed and at least one time calibration node is known, then the rate can be estimated and hence also the divergence times of the internal nodes. What are phylogenies used for in modern science? reconstruction past: naming of organisims, predicting the future-( evolution of the flue visurs, makes predictions of the future changes-- used to make futre flu shots each year. ) Why do scientists assume there is a common universal ancestor for all organisms on the planet: luca ( last universal common ancestory, commonalities of all life: What are the steps to create life via chemical evolution: creation of monomers.
