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Summary Stage Literature (0) Attributions Wiki

Name: NF stage 2-

XAO ID: 1000028

Definition: "Nieuwkoop and Faber stage 2-, corresponding to an embryo of age 1 hr 15 min at 22-24 Celsius and having the following external morphological criteria: Beginning of first cleavage. First cleavage groove has not yet reached vegetal pole. Length: 1.4 - 1.5 mm."

Preceded By: NF stage 1 Succeeded By: NF stage 2 (2-cell)