Is there any expression or presence of steroidal hormones during early embryonic development of mice?

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Paul J Bonthuis

Yes, at least for male mice the testes start secreting androgens at about P14 and a peak at about P17 as I recall, but probably best to check the literature for the exact time points.

Cash Kumar

Ok, yes truly said it is known for male but as you said time you have told is too late than I was asking about.

I am looking at 11-13dpc.