QuizMe

		A. It is a transcription factor, NOT a signaling molecule
		B. It forms a gradient
		C. It obeys the “French flag” model
		D. It diffuses between nuclei in a syncytium
		E. A+D
		F. B+C

		A. It is a transcription factor, NOT a signaling molecule
		B. It forms a gradient
		C. It obeys the “French flag” model
		D. It diffuses between nuclei in a syncytium
		E. A+D
		F. B+C

Bicoid was the first morphogen discovered. What makes it an atypical morphogen?