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Which diagram correctly displays the order of events during egg formation? primary oocyte ® secondary oocyte meiosis i ® meiosis ii ® ovum o ovum ® meiosis iⓡ primary oocyte meiosis ii ® secondary oocyte o primary oocyte meiosis l ® secondary oocyte meiosis ii ® ovum o primary oocyte meiosis i ® ovum ® meiosis ii ⓡ secondary oocyte

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Sequence of events during egg formation:

Primary oocyte – meiosis l – secondary oocyte – meiosis II – ovary

Explanation:

The process of egg formation is called oogenesis. During oogenesis the primary oocyte is formed when oogonia is captured by prophase-I of meiosis I. An additional number of primary oocyte are captured.

At puberty of the primary oocyte, a diploid cell divides to form one haploid secondary oocyte and one polar body. Thus, at the end of meiosis I one secondary oocyte is formed, after secondary oocyte forms of meiosis II ovum.