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XB-STAGE-35

Name: NF stage 12.5 XAO Id: XAO:1000033

Definition: Nieuwkoop and Faber stage 12.5; age 14 hr 15 min at 22-24 Celsius; corresponding to the following external morphological criteria: Small yolk plug stage. Future position of neural plate and median groove indicated by darker pigment lines. Yolk plug usually ovoid, variable in size. Length: 1.4 - 1.5 mm.

Preceded By: NF stage 12 Succeeded By: NF stage 13

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