People with giant axons lose the ability to move and see bec

People with giant axons lose the ability to move and see because

a. apoptosis in their body rapidly and neatly dismantles cells into membrane-enclosed pieces that a phagocyte can mop up.

b. they lack a protein, called gigaxonin, which normally breaks down intermediate filaments and recycles their components.

c. they have an excess of CFTR proteins, which entrap salt inside cells.

d. their hemoglobin leaks out of the cells of the body.

Solution

The answer is: b. they lack a protein, called gigaxonin, which normally breaks down intermediate filaments and recycles their components.

People with giant axons lose the ability to move and see because they lack a protein, called gigaxonin, which normally breaks down intermediate filaments and recycles their components.

Due to mutation in GAN gene, functional gigaxonin is not produced, due to which neurofilaments become densely packed in the axons.