Organic Chemistry
Organic Chemistry
9th Edition
ISBN: 9781305080485
Author: John E. McMurry
Publisher: Cengage Learning
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Chapter 28.SE, Problem 23AP

The DNA of sea urchins contains about 32% A. What percentages of the other three bases would you expect in sea urchin DNA? Explain.

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The "melting point" of a DNA molecule is the temperature at which the double-helical strand breaks apart. Suppose you are given two DNA samples. One sample, sample A, contains 45% G-C base pairs, while the other sample, sample B, contains 64% G-C base pairs. The total number of bases is the same in each sample. Which of the two samples, sample A or sample B, has a higher melting point? A. sample A B. sample B C. The melting point is the same for both.
III. Proteins 1. The protein illustrated below was isolated from a superhuman being. Scientists theorized that it was the source of power of its power. CH3 NH `CH3 NH NH NH 'NH NH `NH `NH `NH H3C H3C H3C `NH2 Construct the sequence of the protein using the three letter symbol. а.
A protein structure is solely determined by the sequence of amino acids in the primary structure. Suppose that you were to genetically engineer a new protein by keeping the exact same sequence, but it was completely reversed in the order of amino acids compared to the original. Would the new protein have the same tertiary structure as the original? Why?

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Organic Chemistry

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Nucleic acids - DNA and RNA structure; Author: MEDSimplified;https://www.youtube.com/watch?v=0lZRAShqft0;License: Standard YouTube License, CC-BY