part of
part_of
part of
occurs in
occurs in
zygote stage
NF stage 1
XAO:1000001
zygote stage (xenopus)
zygote
Nieuwkoop and Faber stage 1, corresponding to an embryo of age 0 hr and having the following external morphological criteria: One cell stage, shortly after fertilization. Pigmentation darker ventrally than dorsally. Length: 1.4 - 1.5 mm.
xenopus_developmental_stage
UBERON:0000106
embryonic stage
NF stage