(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.



Fig. 2. Colony morphology and analysis of hemoglobin mRNA expression. Photomicrograph of an E8.5 yolk sac primitive erythroid cells (EryP) and a definitive erythroid progenitor cell (BFU-E). Magnification x100. Panels to the right of the photomicrographs depict the results of RT-PCR analysis of plucked erythroid colonies and reveal that EryP contain mRNA for ßH1 (embryonic hemoglobin) and ß globin major (adult hemoglobin) while BFU-E express mRNA for only ß globin major. Negative control samples were tested using no reverse transcriptase.