Dissected ovaries from blowfly show the developing eggs within the ovary. The flies that were dissected constitutively express GFP seen all throughout the eggs. RFP is used as a marker to determine when different promoters are active and in these fly ovaries is only seen in early stages of the developing eggs (LSM 880). Image by Megan Williamson. Research Lab: Dr. Maxwell Scott, Department of Entomology and Plant Pathology.