When do the egg cells of a human female begin meiosis ?

Number of autosomes present in liver cells of a human female is

The covering egg in human female is know as

How many chromosomes will be in cells of human, produces by meiosis ?

Germ cells in female gonad and male gonad begin undergoing meiosis simultaneously. What will be ratio of ova and sperms produced ?

If a germ cell in a female gonad and a germ cell in a male gonad begin undergoing meiosis simultan eousely, what will be the ratio of ova and sperms produced?

If a germ cell in a female gonad and a germ cell in a male gonad begin undergoing meiosis simultan eousely, what will be the ratio of ova and sperms produced?