Question

Why do we add detergent to the strawberries? Group of answer choices To dissolve proteins that are found on the DNA molecule and release the DNA from those proteins. To dissolve the cell and nuclear membranes and release the DNA. To stabilize the DNA molecule so it doesn't fragment when dissolved in water. To keep the strawberries alive. To rinse off any dirt and pesticides that are on the strawberries.

Answer 1

The correct answer is - To dissolve the cell and nuclear membranes and release the DNA.

Step-by-step explanation:

The major function of the detergent in DNA extraction is to dissolve the cell and cellular membranes. It can increase the membrane permeability by pulling apart lipids and proteins that are components of the nuclear and cellular membrane and lyse the cell, from which we want to extract the DNA.

Detergents cause pores in the cell membranes and once these membranes are completely lysed the DNA is released from the cell. It is similar to detergents removes fat (lipids) from dishes.