The cell you came from was once inside of your mother's fetus in her mother's womb.
Although I was born in 1976, the egg that I came from was created in my grandmother’s womb– somewhere in Georgia, in 1946.
Want to calculate the vintage of the egg you came from? Take your mother’s date of birth and subtract about 20 weeks.
That’s true because unlike males, who constantly generate sperm after they hit puberty, girls are born with their one and only lifetime supply of eggs. Around the 20th week of gestation, a female fetus has developed a reproductive system, including 6 to 7 million eggs in her ovaries.
The matrilineal line looks much like a nested Russian doll.
The egg that created you was formed inside of your mother’s fetus while she was inside of your grandmother’s womb.
Ahhg! Get it out! Get it out of me!
Women may be able to create more eggs.
no, no they can’t create more eggs. Womena are born with all the eggs they will ever have.
no, actually, they are not. Eggs only deteriorate over time, and since it takes four every month to make one fertile oovum, the numbers decrease quite rapidly over time past puberty.
NO, THEY ARE BORN WITH ALL THE EGGS THEY WILL EVER HAVE. THEY CAN NOT CREATE EGGS LATER ON. EGGS THEY HAVE WILL MATURE OR RIPEN AS THEY ARE NEEDED. AND YES, THEY CAN AND DO BREAK DOWN OVER TIME
Women CAN make new eggs: http://www.washingtonpost.com/wp-dyn/content/article/2009/04/12/AR2009041200967.html
Doesn’t say CAN, says it’s a possibility but they have yet to put this in place with humans – don’t count your eggs before they’ve hatched!
http://www.timeanddate.com/date/dateadd.html
Here is a beautiful poem written about just this
http://www.turtlehope.blogspot.com/
What about the DNA and genes from the Father’s Mother?
I guess I sorta knew that, but it sure sounds weird. By this logic, instead of being 28, I’ve been around for over 62 years. No wonder I feel so old when the kids want to run around all day!
That is sooo funny
Wow! My egg (the one I came from) is as old as yours, but I was born like a decade later than you!
I didn’t get started when my mom was a 20 week old fetus in my grandmom’s womb.
I needed a sperm with my dad’s 23 chromosomes to make me a normal female with 46 chromosomes.
What *did* exist way back when my mom was bit a 20 week fetus was my mitochondrial DNA and all the organelles found in my cells to this day (that originated from those oocytes.) Now, my daughter is 26 weeks pregnant her mitochondrial DNA and organelles having origins in my ovaries when I was her age.
May she go on to carry these into the future that I will not get to see with my own eyes.
I think it’s also really cool to think about the generations to come when one day my daughter may conceive my grandchild with the eggs that were created in my womb only three years ago!
As a midwife, I LOVE this! Going to share on my wall…. At 47, the egg I came from developed 80 years ago… thanks, Mom
Your a were a welcomed egg…And a treasured of a daughter…
Huge thanks to grrrkgrrrl for posting “TIL I was once inside my grandmother” — ours is a new blog & this post brought us our first surge in readers. Big hoorays and gratitude. And thanks to everybody for visiting, sharing & commenting! You warmed our cockles.