A medical biologist is examining one of many cells that are produced during the human oogenesis process. The cell is haploid, meaning that it has 23 chromosomes, and it was removed from the body shortly after it entered the fallopian tube. The cell had begun the process of meiosis II, but did not finish it. What type of cell is the biologist most likely examining?

After meiosis I, a primary oocyte produces a haploid secondary oocyte with 23 chromosomes. The secondary oocyte begins meiosis II and is released into the fallopian tube, where it typically remains paused until fertilization. A fertilized egg has completed meiosis II, while a primary oocyte has not yet completed meiosis I.

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