Calculate the following DNA concentrations and determine the purity of the samples: DNA Dilution Dilution A260 Concentration A260/280 Pure Explain Sample factor DNA? 1 1 ul in a total 10/1 = 1.98 1.56 volume of 10 10ul 2 0.5 ul in a 20 2.5 1.82 total volume of 10ul 3 5 ul in a total 0.86 1.95 volume of 25 ul Show your calculations (for samples 1-3 above) below: DNA conc = (A260 reading) x (absorbance factor) x (dilution factor)| If you have 20 ul of each DNA sample above (samples 1-3), what is the total DNA yield (concentration)? Show your calculations below:

Introduction to General, Organic and Biochemistry
11th Edition
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Chapter25: Nucleotides, Nucleic Acids, And Heredity
Section: Chapter Questions
Problem 25.24P
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Calculate the following DNA concentrations and determine the purity of the samples:
DNA
Dilution
Dilution
A260
Concentration A260/280
Pure
Explain
Sample
factor
DNA?
1
1 ul in a total
10/1 =
1.98
1.56
volume of
10
10ul
2
0.5 ul in a
20
2.5
1.82
total volume
of 10ul
3
5 ul in a total
0.86
1.95
volume of 25
ul
Show your calculations (for samples 1-3 above) below:
DNA conc = (A260 reading) x (absorbance factor) x (dilution factor)
If you have 20 ul of each DNA sample above (samples 1-3), what is the total DNA yield
(concentration)? Show your calculations below:
Transcribed Image Text:Calculate the following DNA concentrations and determine the purity of the samples: DNA Dilution Dilution A260 Concentration A260/280 Pure Explain Sample factor DNA? 1 1 ul in a total 10/1 = 1.98 1.56 volume of 10 10ul 2 0.5 ul in a 20 2.5 1.82 total volume of 10ul 3 5 ul in a total 0.86 1.95 volume of 25 ul Show your calculations (for samples 1-3 above) below: DNA conc = (A260 reading) x (absorbance factor) x (dilution factor) If you have 20 ul of each DNA sample above (samples 1-3), what is the total DNA yield (concentration)? Show your calculations below:
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