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About: ettenson

Biography:
Website:
https://www.bio.cmu.edu/labs/ettensohn/

Posts by ettenson:

How do new cell types evolve? Sea urchins show the way….

Posted by on November 21st, 2019

We know surprisingly little about how evolution has created new cell types. One of the best examples of a recently evolved cell type comes from early sea urchin development. Most sea urchins produce a group of early embryonic cells known as micromeres- four small blastomeres that form by unequal cell division at the vegetal pole[…]