In Support of the Topographic-Gradient Hypothesis,it Has Been Shown That

question 35

Multiple Choice

In support of the topographic-gradient hypothesis,it has been shown that

• A) axons do not grow out from the retinas until the retinas are fully grown, which is why babies have disproportionately large eyes.
• B) axons do not grow out from the retinas until their target structures (e.g., optic tectums) are fully grown.
• C) retinas and optic tectums always grow in precise proportion to one another.
• D) the synaptic connections originally formed by retinal ganglion cells on the optic tectums gradually shift as both the eyes and optic tectums grow at different rates during development.
• E) both A and B