Figure 2.

S- and M-phase indices scored in hermaphrodites 24 h past L4. Solid line indicates region of mitotic cell cycle in all germ lines. Dotted line spans positions of MR/TZ boundaries in all germ lines scored. Dashed line indicates region of meiotic prophase in all germ lines. (A) Labeling-index. % BrdU-positive cells at positions along the distal-proximal axis. Animals were fed BrdU for 15 min with no chase. Bars, 95% confidence limit. Data from 12 germ lines. (B) Mitotic index. Percent PH3+ cells at positions along the distal-proximal axis. Data from 102 germ lines.