part of
preceded by
cleavage stage
NF stage 2 (2-cell)
2-cell stage
Nieuwkoop and Faber stage 2, corresponding to an embryo of age 1 hr 30 min at 22-24 Celsius and having the following external morphological criteria: Advanced two cell stage. First cleavage groove has reached vegetal pole. Ventral side of blastomeres darker than dorsal side. Length: 1.4 - 1.5 mm.
UBERON:0007232
XAO:1000011
xenopus_developmental_stage
NF stage 2-
NF stage