Explain step by step where the DNA is located and what equipment they will need to observe the DNA PLEASE BE QUICK ​

Gel electrophoresis is a technique used to separate DNA fragments according to their size.

DNA samples are loaded into wells (indentations) at one end of a gel, and an electric current is applied to pull them through the gel.

DNA fragments are negatively charged, so they move towards the positive electrode. Because all DNA fragments have the same amount of charge per mass, small fragments move through the gel faster than large ones.

When a gel is stained with a DNA-binding dye, the DNA fragments can be seen as bands, each representing a group of same-sized DNA fragments.

Introduction

the answer is frequency

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