Mitosis at an embryogenesis. Whether there is a crossing-over?

[lena4417]

Whether there are results of researches, what in an embryogenesis in a mitosis there is a crossing-over? I would like to know, whether there is a crossing-over in a mitosis (if the crossing-over exists in a mitosis in an embryogenesis) in the excitatory founder cells.

I ask to excuse me - I awfully write in English

[natcarmi]

hi lena
there is no crossing-over in mitosis at all. there is only in meiosis. after the meiosis, the fertilization happens, and again, there is no crossing over there.

hope that i help u.
good luck!

[milkvincent]

Under normal circumstances, there won't be any crossing over in mitosis.

Only under rare circumstances will crossing over occur during mitosis (these are usually errors). Yet, mitotic crossing over can be induced by inserting certain sequence of DNA artificially (if I remember correctly).