Bcd molecules are abundant at the time of <i>hb</i> transcription shutdown.

<p>(<b>A</b>) Shown are the mean profiles of raw Bcd intensities (in arbitrary units) from cycle 14A embryos at different time classes. Each color represents a time class; the adjacent T time classes differ by ∼5 min (see Fig. 2A). For clarity, only mean profiles are shown. See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0062641#pone.0062641.s005" target="_blank">Fig. S5</a> for individual profiles. (<b>B</b>) Shown are raw <i>B_max</i> values (in arbitrary units) for individual embryos from different time classes T. The mean and standard deviation are: 50.92±15.15, 44.39±9.83, 35.08±8.16, 32.12±9.22 for T1 to T4, respectively.