Since eggs are already created at birth, how does age of the mother influence trisomy +21? I mean one or more eggs with 2 X chromosome must already be formed by birth, so one of those aberrant one could be released any time. Why does the odds of Down Syndrome increase with age of the mother?
For want of any other way to contact PZ;
Here’s a video he might enjoy of someone helping an aging spider; https://imgur.com/gallery/yZlaVBP
Since eggs are already created at birth, how does age of the mother influence trisomy +21? I mean one or more eggs with 2 X chromosome must already be formed by birth, so one of those aberrant one could be released any time. Why does the odds of Down Syndrome increase with age of the mother?