Scientific Source #16 – Peer-Reviewed Article
“Pronuclear/zygotic stage is the very first stage of life”16
16Okada, Y. & Yamaguchi, K., Epigenetic modifications and reprogramming in paternal pronucleus: sperm, preimplantation embryo, and beyond, Cell Mol Life Sci, 2017, 74(11):1957-1967, https://pubmed.ncbi.nlm.nih.gov/28050628.