Do oogonia undergo replication in the process of...

[FROGGBUSTER]

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Do oogonia undergo replication in the process of differentiating into primary oocytes? I have in my notes that spermatagonia do undergo replication in differentiating into primary spermatocytes, so it should be the same for oogenesis right?

 

[Troyvdg]

Do oogonia undergo replication in the process of differentiating into primary oocytes? I have in my notes that spermatagonia do undergo replication in differentiating into primary spermatocytes, so it should be the same for oogenesis right?

replication meaning meiosis? Its the same process for oocytes, except the spermatogonia divides by mitosis into the primary spermatocyte, and the oocyte undergoes meiosis to turn into the primary oocyte-which occurs during embryological development and is arrested at prophase until puberty)

 

[toothhornet88]

Do oogonia undergo replication in the process of differentiating into primary oocytes? I have in my notes that spermatagonia do undergo replication in differentiating into primary spermatocytes, so it should be the same for oogenesis right?

Yes i believe they undergo mitosis via Oocytogenesis

 

[toothhornet88]

replication meaning meiosis? Its the same process for oocytes, except the spermatogonia divides by mitosis into the primary spermatocyte, and the oocyte undergoes meiosis to turn into the primary oocyte-which occurs during embryological development and is arrested at prophase until puberty)

This is from wikipedia, it says Oogonium divides through mitosis forming priary oocytes

Cell type ploidy Process Process completion Oogonium diploid Oocytogenesis (mitosis) third trimester (forming oocytes) primary Oocyte diploid Ootidogenesis (meiosis 1) (Folliculogenesis) Dictyate in prophase I for up to 50 years secondary Oocyte haploid Ootidogenesis (meiosis 2) Halted in metaphase II until fertilization Ovum haploid

 

[HannibalLecter]

Oogonia are just like mother cells to all the oocytes that are being produced. Spermatogonia are also just like mother cells to all the spermatocytes being produced. There would be differentiation in the sense that oocytes and spermatocytes can't give rise to other oocytes and spermatocytes but other than that there should be no difference between them because they are undergoing mitosis.

 

[Troyvdg]

This is from wikipedia, it says Oogonium divides through mitosis forming priary oocytes

Cell type ploidy Process Process completion Oogonium diploid Oocytogenesis (mitosis) third trimester (forming oocytes) primary Oocyte diploid Ootidogenesis (meiosis 1) (Folliculogenesis) Dictyate in prophase I for up to 50 years secondary Oocyte haploid Ootidogenesis (meiosis 2) Halted in metaphase II until fertilization Ovum haploid

good find