Which of the Following Is True of Commissural Axon Guidance

question 9

Multiple Choice

Which of the following is true of commissural axon guidance in the neural tube?

• A) Changes in the Robo3 receptor are important for selectively preventing commissural neuron midline crossing
• B) Netrin-1 binds to its receptor, DCC, and is a chemorepellant.
• C) Robo1/2 is a receptor that attracts commissural neurons
• D) Commissural neurons are allowed to cross the midline multiple times

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