Biology — Oogenesis

{
  "elements":[
    {"data":{"id":"oog","label":"Oogonium (2n)"}},
    {"data":{"id":"poc","label":"Primary oocyte (2n)"}},
    {"data":{"id":"soc","label":"Secondary oocyte (n)"}},
    {"data":{"id":"pb1","label":"First polar body"}},
    {"data":{"id":"ovum","label":"Ovum (n)"}},
    {"data":{"id":"pb2","label":"Second polar body"}},
    {"data":{"source":"oog","target":"poc","label":"mitosis + growth"}},
    {"data":{"source":"poc","target":"soc","label":"meiosis I"}},
    {"data":{"source":"poc","target":"pb1"}},
    {"data":{"source":"soc","target":"ovum","label":"meiosis II (at fertilisation)"}},
    {"data":{"source":"soc","target":"pb2"}}
  ],
  "layout":{"name":"breadthfirst","directed":true}
}