QuizMe

		A. The process is identical in all embryos
		B. The axis is already determined in the unfertilized oocyte of some embryos
		C. There is no indication of an axis in mouse blastocysts
		D. In mice, the first indication of axis formation is migration of mesoderm to the anterior pole
		E. A+D
		F. B+C
		G. C+D

		A. The process is identical in all embryos
		B. The axis is already determined in the unfertilized oocyte of some embryos
		C. There is no indication of an axis in mouse blastocysts
		D. In mice, the first indication of axis formation is migration of mesoderm to the anterior pole
		E. A+D
		F. B+C
		G. C+D

What is correct about anterior-posterior axis formation in embryos?