The primary oocytes in primordial follicles remain arrested in prophase I of first meiosis in ovary until after puberty. Thus, option D is correct.
Oocytes are the first developing egg cells produced by ancestral oogonia cells of ovary during fetal development.
Oogonia undergo mitosis and produce diploid chromosome containing daughter cells and these oogonia become oocytes.
Oocytes remain dormant until puberty, as it is arrested at early stage of first meiosis as a primary oocyte or primordial follicle.
The average time duration of the conversion of the primordial follicle containing an oocyte to a preovulatory follicle is about 120 days.
Hence option D is correct.
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Your question was incorrect. So the probable question was
The primary oocyte in primordial follicles remain arrested in _____ until after puberty.
A. anaphase I
B. anaphase II
C. prophae II
D. prophase I
