DNA Isolation Process Techniques
Interactive Video
•
Biology, Science, Chemistry
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of chopping the onion into small pieces in the DNA isolation process?
To enhance the flavor
To disrupt cell walls
To increase the surface area for salt absorption
To make it easier to blend
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is washing-up liquid added to the solution during DNA isolation?
To add fragrance
To neutralize the solution
To break down cell and nuclear membranes
To clean the onion
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of salt in the DNA isolation process?
To dissolve the DNA
To increase the solution's temperature
To clump the DNA together
To enhance the solution's color
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the mixture heated to 60 degrees Celsius during the DNA isolation process?
To sterilize the solution
To evaporate excess water
To denature enzymes that break down DNA
To cook the onion
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of placing the beaker in an ice bath after heating?
To enhance the color of the solution
To solidify the solution
To prevent further breakdown of DNA
To freeze the DNA
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the mixture blended for only three seconds?
To avoid destroying the DNA
To ensure even mixing
To create a smooth texture
To reduce noise
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of filtering the mixture after blending?
To add more liquid
To change the color
To remove large cellular debris
To remove DNA
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