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Figure Caption
Fig. 8 Type-B embryos constrict off the yolk. (A,B) UV-treated and control embryo of the same age, respectively. UV-treated embryo shows constriction of the yolk cell. Dorsal to the right, anterior up. (C) Circumferentially elongated cells at the margin of the blastoderm in a Type-B embryo (arrow). (D-G) The detachment of the blastoderm from the yolk mass. The frames were taken within 30 minutes.
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