Can Oocyte Division Occur Without the Contribution of Sperm?

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Discussion Overview

The discussion centers on the possibility of oocyte division occurring without sperm contribution, exploring concepts related to artificial fertilization and the roles of genetic material from both oocytes and sperm in embryo development.

Discussion Character

  • Debate/contested

Main Points Raised

  • One participant questions whether transferring nuclear material from one oocyte to another could initiate division.
  • Another participant explains that during development, primordial germ cells become oogonia through mitosis, which then develop into primary oocytes.
  • A participant seeks clarification on whether the discussed process could be considered artificial fertilization.
  • One response clarifies that the process described does not constitute artificial fertilization and emphasizes that sperm is necessary for embryo creation, arguing that the genetic contribution from sperm is significant and multifaceted.
  • Another participant asserts that the notion of creating an embryo without sperm is impossible and potentially harmful, citing the importance of sperm in fertilization.
  • A later reply introduces anecdotal evidence suggesting that maternal bodies may retain genetic material from previous pregnancies, adding complexity to the discussion.

Areas of Agreement / Disagreement

Participants express differing views on the necessity of sperm for fertilization and embryo development, indicating that the discussion remains unresolved with multiple competing perspectives.

Contextual Notes

Participants have not fully explored the implications of their claims regarding genetic contributions and the mechanisms of oocyte division, leaving several assumptions and definitions unaddressed.

jk22
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If two oocytes are considered, does taking the nuclear material of one and transferring to the other's nucleus start the division of it ?
 
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That happens with oogonia. During development the primordial germ cells form and become oogonia through mitosis (by millions), then they can become primary oocytes.
 
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Thanks. But this process cannot be considered as an artificial fecondation ?
 
fecondation=fertilization.

It is not artificial fertilization. Correct. What @Fervent Freyja defined above is normal reproduction.
I believe you are asking: under the microscope, can one take the nucleus (nuclear mterial) from one oocyte and insert it into another oocyte. Then expect the oocyte (now 2n) to undergo normal cell division to create an embryo? i.e., artificial fertilization.

I do not know.
 
jk22 said:
Thanks. But this process cannot be considered as an artificial fecondation ?

Absolutely not. What you are asking about would imply that males aren't needed, that's impossible, and a harmful notion. You need a sperm for fertilization to create an embryo. The genetic material from the sperm actually contributes far more than half to the embryo, and also contributes further in ways that the genetic material in the oocyte does not; of course, mainstream would like people to believe differently. There is even evidence that my body could still be harboring and using my Husbands genetic material in different locations, even my brain, years after pregnancy.

http://www.scientificamerican.com/a...over-childrens-cells-living-in-mothers-brain/
 

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