Sperry's initial version of the chemoaffinity hypothesis of axon growth has difficulty accounting for
A) the results of Sperry's own eye-rotation regeneration experiments.
B) the ability of axons to grow to their correct targets.
C) the ability of axons to follow exactly the same circuitous route to their target in every member of a species.
D) all of the above
E) both A and B
Question 2
Only those growth cones that are not pioneer growth cones can normally find their way to their targets by
A) chemoaffinity.
B) fasciculation.
C) blueprints.
D) topographic gradients.
E) stopping and asking for directions.
Three zones of root growth.
Conduction of the action potential along an axon.
The trophic cascade hypothesis.
Poverty and population growth
Growth and quality of life
Population Growth in America