Question: You analyze a DNA sample and find that its base composition is 30% A, 20% T, 30% G,. and 20% C. W…
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Show transcribed image text You analyze a DNA sample and find that its base composition is 30% A, 20% T, 30% G,. and 20% C. What can you conclude about the structure of this DNA? For a double-stranded DNA molecule in which 40% of the bases are either G or C, what can you conclude about its content of the base A? For a double-stranded DNA molecule in which 40% of the bases are either G or T, what can you conclude about its content of the base A? For a double-stranded DNA molecule in which 15% of the bases are A, what can you conclude about its content of the base C? Would you expect the Tm of this DNA to be above or below 90 degree C? The figure shows the melting curves for two DNA samples that were thermally denatured under the same conditions. What conclusion can you draw concerning the base compositions of the two samples? Explain. How might you explain the steeper slope of the melting curve for sample A?
You analyze a DNA sample and find that its base composition is 30% A, 20% T, 30% G,. and 20% C. What can you conclude about the structure of this DNA? For a double-stranded DNA molecule in which 40% of the bases are either G or C, what can you conclude about its content of the base A? For a double-stranded DNA molecule in which 40% of the bases are either G or T, what can you conclude about its content of the base A? For a double-stranded DNA molecule in which 15% of the bases are A, what can you conclude about its content of the base C? Would you expect the Tm of this DNA to be above or below 90 degree C? The figure shows the melting curves for two DNA samples that were thermally denatured under the same conditions. What conclusion can you draw concerning the base compositions of the two samples? Explain. How might you explain the steeper slope of the melting curve for sample A?
