Intermediate filaments are uniquely non-polar and built by lateral bundling in five steps: 1. synthesis of an alpha-helical monomer
2. formation of a coiled-coil dimer
3. formation of a staggered tetramer of two coiled-coil dimers
4. lateral association of 8 tetramers
5. addition of 8 tetramers to a growing filament.

At what step is polarity lost?

the volume increases

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.