FIGURE 2. Comparison of putative ES (left column) and TS (right column) cell lines derived from single blastomeres.
From the following article:
Embryonic and extraembryonic stem cell lines derived from single mouse blastomeres
Young Chung, Irina Klimanskaya, Sandy Becker, Joel Marh, Shi-Jiang Lu, Julie Johnson, Lorraine Meisner and Robert Lanza
Nature 439, 216-219(12 January 2006)
doi:10.1038/nature04277
a, b, Phase contrast photograph of typical colonies. c, d, LacZ-stained colonies, showing their single blastomere origin. e, f, Alkaline phosphatase staining. g, h, Indirect immunofluorescence with antibodies to Oct-4. i, SSEA-1 staining of putative ES cells; j, Troma-1 staining of putative TS cells (same field as h). Scale bar, 200 
m.
