Answered: 8) Explain why DNA with a higher ratio…

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8) Explain why DNA with a higher ratio of A-T base pairs compared to G-C base pairing would have a lower melting point.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

7) You encounter a bunch of cells with glucose concentration inside of 0.10 mM and they are suspended in a
solution that has a glucose concentration of 0.010 mM.
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a) Will glucose travel into or out of the cells?
b) What is the free energy change in kl/mol for the transport of glucose from the medium into the cell? Assume a
temperature of 37 °C.
8) Explain why DNA with a higher ratio of A-T base pairs compared to G-C base pairing would have a lower
melting point.
9) Ethidium bromide is a compound commonly used to visualize DNA during gel electrophoresis, though its use
has been phased out due to toxicity and mutagenic concerns. This compound stains DNA by intercalating. Explain
what this means in the context of DNA base pairs.

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