Question

what is the role of dish soap in the dna extraction process?
it changes the dna color for better visibility.
it breaks down the cell membranes to release the dna.
it creates bubbles to identify the dna.
it helps dissolve the alcohol.

Explanation:

Dish soap is a surfactant. In DNA extraction, cell membranes (which are lipid - based) need to be broken down. Surfactants like dish soap can disrupt the lipid - protein structure of cell membranes. This allows the release of DNA from the cells.

• The first option is incorrect because dish soap does not change the color of DNA.
• The third option is wrong as creating bubbles is not the function related to DNA release.
• The fourth option is incorrect since dish soap is not involved in dissolving alcohol in the context of DNA extraction for the purpose of releasing DNA from cells.

Answer:

It breaks down the cell membranes to release the DNA.