Final answer:
In the DNA extraction process, mashing/blending the food mechanically breaks down cell walls, adding detergent dissolves membranes, adding salt keeps DNA in solution, filtering removes undissolved components, and adding ethanol precipitates the DNA.
Step-by-step explanation:
The process of DNA extraction involves several steps, each with its specific role. Here's how each step matches its role:
a. Mashing/blending the food - C. mechanically breaks down cell walls and separates the cells
b. Adding detergent - E. dissolves cellular and nuclear membranes
c. Adding salt - A. keeps the DNA in solution
d. Filtering through cheesecloth - B. removes undissolved cellular components such as membranes, cell walls, and organelles
e. Adding ethanol - D. causes the DNA to precipitate out of the filtrate
This simplified overview guides us through the process from breaking down cell structures to precipitating and isolating the DNA.