Question

question 3
what is the purpose of the detergent that is used when doing a dna extraction from strawberries?
a it helps break open the cells by interacting with the phospholipids and pulling them away from each other.
b it functions to pull water away from the dna and therefore causes the dna to precipitate out.
c it functions to keep the membrane lipids together to prevent breaking open cells.
d it preserves the color of the strawberry extract

Explanation:

Detergent in DNA extraction from strawberries interacts with phospholipids in cell membranes. Phospholipids are part of the cell membrane structure. Detergent molecules have a hydrophilic (water - loving) and a hydrophobic (water - hating) part. The hydrophobic part of the detergent interacts with the lipid (hydrophobic) part of the phospholipid. This interaction disrupts the cell membrane, allowing the cell to break open and release its contents, including DNA.

Answer:

A. It helps break open the cells by interacting with the phospholipids and pulling them away from each other.