Which methods separate proteins based on their charge? sds-page isoelectric focusing ion-exchange chromatography affinity chromatography i and ii only ii and iii only i, ii, and iii only ii, iii, and iv only

Isoelectric focusing Ion-exchange chromatography.

Explanation:

Proteins are the polymers made of the monomers of the alpha amino acids linked through the peptide bond. The proteins may be neutral as well some contains the charge over them.

The proteins on the basis of the charge can be separated by ion exchange chromatography and isoelectric focusing. These techniques have different solutes and solvents that separate proteins on charge basis. SDS-PAGE separates the protein on their weight and Affinity chromatography separates protein on their binding with ligand.

Thus, the answer is  only II and III .

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave

the answer is d. none of the above