Question

You would like to determine the effect of formamide (structure shown below right) on the melting temperature of DNA. You do that by measuring the absorbance of a DNA solution at 260 nm at various temperatures in the presence or absence of formamide. The results are recorded in the figure below. Which of the two curves represent the "+ formamide" solution and which one "\text{-} formamide" control? Match the correct answers with the respective curve (not all answers are used): 1.00 Absorbance, 260 nm 0.75 0.50 60 70 80 Temp, $^\circ$C Blue (left) [Choose] Red (right) [Choose] H-C-NH$_2$

          You would like to determine the effect of formamide (structure shown below right) on
the melting temperature of DNA. You do that by measuring the absorbance of a DNA
solution at 260 nm at various temperatures in the presence or absence of formamide.
The results are recorded in the figure below. Which of the two curves represent the "+
formamide" solution and which one "\text{-} formamide" control? Match the correct answers
with the respective curve (not all answers are used):
1.00
Absorbance, 260 nm
0.75
0.50
60
70
80
Temp, $^\circ$C
Blue (left)
[Choose]
Red (right)
[Choose]
H-C-NH$_2$

You would like to determine the effect of formamide (structure shown below right) on
the melting temperature of DNA. You do that by measuring the absorbance of a DNA
solution at 260 nm at various temperatures in the presence or absence of formamide.
The results are recorded in the figure below. Which of the two curves represent the "+
formamide" solution and which one "- formamide" control? Match the correct answers
with the respective curve (not all answers are used):
1.00
Absorbance, 260 nm
0.75
0.50
60
70
80
Temp, ^∘C
Blue (left)
[Choose]
Red (right)
[Choose]
H-C-NH2

Added by Allison W.

Question

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