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What to do next?<br />
• Watch the axons as they encounter Ephrin ligand<br />
• Purify proteins from different regions of the tectum.<br />
• Identify proteins present<br />
• Test the proteins to see if they act as guidance<br />
molecules<br />
• Discovered the Ephrin receptor and ligand—work through<br />
contact-mediated guidance (haptotaxis)<br />
• Ephrin Receptor was found in different concentrations<br />
across the retina, and the ligand in different<br />
concentrations across the tectum!