The decrease in reproductive function.
Explanation:
For a couple attempting to have a child, having at least two miscarriages may be a sign of an chromosomal abnormality.
Hi btw
I would say,
Aa.
Please mark brainlist.
And sorry for the user below ..☺☻
(A) a change in a developmental gene or in its regulation that altered that spatial organization
2nd one is the right answer