QuizMe

		A. It requires the action of cilia in the node
		B. It requires expression of the signal NODAL
		C. if left-right organization of organs is random, it is worse than mirror-image
		D. It involves flow of molecules in a leftward direction
		E. A+B
		F. B+C
		G. All of the above

		A. It requires the action of cilia in the node
		B. It requires expression of the signal NODAL
		C. if left-right organization of organs is random, it is worse than mirror-image
		D. It involves flow of molecules in a leftward direction
		E. A+B
		F. B+C
		G. All of the above

What is true about formation of the left-right axis?