Compare and contrast Primary oocyte and secondary oocyte?

Primary oocytes are diploid cells that have undergone DNA replication but are arrested in prophase I of meiOSis, whereas secondary oocytes are haploid cells resulting from the division of primary oocyte after completing meiOSis I. Secondary oocytes are arrested in metaphase II and are released during ovulation, while primary oocytes are present in the ovaries prior to puberty.