DNAse Test | Theory & Results

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Science, Engineering, Biology
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University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary role of DNA in most organisms?
To transport nutrients
To store genetic information
To provide energy
To act as a structural component
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component is NOT part of a DNA unit?
Phosphate
Deoxyribose
Base
Amino acid
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to a DNA strand when DNAse acts on it?
It remains unchanged
It becomes longer
It breaks down into smaller units
It changes color
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of methyl green in the DNAse test?
To provide nutrients
To act as an indicator
To form DNA strands
To break down DNA
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What indicates a DNAse-positive organism in the test?
A green color around the streak
A red color around the streak
A halo or clearing around the streak
No change in color
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do free nucleotides not appear green in the DNAse test?
They are too small to be seen
They are washed away by water
They absorb the green color
They do not complex with methyl green
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of washing the agar with hydrochloric acid in the DNAse test?
To wash away free nucleotides
To enhance the green color
To dissolve the DNA
To sterilize the agar
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