[Human ovum at the pronucleus fusion stage after natural fertilization].
D002467:Cell Nucleus / Q000648:ultrastructure; D005260:Female; D005306:Fertilization; D006801:Humans; D011247:Pregnancy; D015053:Zygote / Q000648:ultrastructure*
Iaĭtsekletka cheloveka na stadii sliianiia pronukleusov, oplodotvorennaia v estestvennykh usloviiakh.