Science Enhanced S&S Biology - Virginia Department of ...

17. Press with spreader, ridge side down. Do not twist. 18. Lift spreader. Wait one minute as gel solidifies. 19. Repeat steps 12–18 for each of the other samples. 20. Place each plate in a separate bag. Do not seal: this is an aerobic count. 21. Carefully dispose of all plate-preparation materials according to teacher directions. 22. ................
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