
DNA Extraction Methods and Principles
Interactive Video
•
Biology, Science
•
9th - 12th 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 goal of DNA extraction in molecular biology?
To create new DNA sequences
To free DNA from the cell and separate it from other components
To destroy cellular proteins
To synthesize proteins
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
From which of the following can DNA be extracted?
Both living and dead organisms
Only plant tissues
Only living organisms
Only human specimens
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in the DNA extraction process?
Lysis
Filtration
Purification
Precipitation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is commonly used to break open plant cells during DNA extraction?
Mechanical disruption
Magnetic beads
Chemical lysis
Enzymatic digestion
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the precipitation step in DNA extraction?
To dissolve DNA in water
To increase DNA solubility
To synthesize new DNA
To separate DNA from cellular debris
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the quality of extracted DNA typically assessed?
By its smell
Using spectrophotometric readings
Using a microscope
By measuring its color
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a chemical method of DNA extraction?
Using a sonicator
Using magnetic beads
Using phenol and chloroform
Using a blender
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