Campbell Biology Custom Stony Brook 10 Th Edition
10th Edition
ISBN: 9781269870818
Author: Reece Urry Cain Wasserman Minorsky Jackson
Publisher: PEARSON
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Chapter 16, Problem 12TYU
Summary Introduction
To explain: The structure of DNA correlates with its role in the molecular basis of inheritance.
Theme introduction:
The transmission of traits to the next generations is known as heredity. The heritable genetic information is in the form of DNA. The DNA structure and function are linked and, these are based on the base pair composition and their arrangement.
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The continuity of life is based on heritable information in the form of DNA, and structure and function are correlated at all levels of biological organization. In a short essay (100−150 words), describe how the structure of DNA is correlated with its role as the molecular basis of inheritance.
In chromosomes, doubly-stranded DNA wraps tightly around histone proteins. Think about the structure of DNA, especially the "backbone," and determine what category of
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Histone Octamer
tetramer
dimer HZA
dimer
dimer
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Histone "fastener"
Here the blue represents histones, and the red is the DNA strand.
To help the DNA fold up in an aqueous environment, the histones are nonpolar to exclude water, so many of the amino acid side chains are nonpolar.
The backbone of DNA is the alternating phosphate-sugar part, and the phosphate is negatively charged. Positive charges on the histone residues will bind tightly here, so
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The backbone of DNA is the alternating phosphate-deoxyribose part, and the phosphate is negatively charged. Positive charges on the histone residues will bind tightly
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One of the following is a characteristic of eukaryotic genetic material?
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2. Eukaryotic genetic material consists of supercoiled circular DNA molecules complexed with proteins into chromosomes.
3. Eukaryotic genetic material consists of relaxed linear DNA molecules complexed with RNA into a 30 nm fiber.
4. Eukaryotic genetic material is compacted by folding linker regions around non-histone proteins to form a scaffold.
Chapter 16 Solutions
Campbell Biology Custom Stony Brook 10 Th Edition
Ch. 16.1 - Given a polynucleotide sequence such as GAATTC,...Ch. 16.1 - VISUAL SKILLS Griffith was trying to develop a...Ch. 16.2 - What role does complementary base pairing play in...Ch. 16.2 - Identify two major functions of DNA pol III in DNA...Ch. 16.2 - Prob. 3CCCh. 16.2 - Prob. 4CCCh. 16.3 - Describe the structure of a nucleosome, the basic...Ch. 16.3 - What two properties, one structural and one...Ch. 16.3 - MAKE CONNECTIONS Interphase chromosomes appear to...Ch. 16 - What does it mean wheti we say that the two DNA...
Ch. 16 - DRAW IT Redraw the Punnett Square on The right...Ch. 16 - Describe the levels of chromatin packing you'd...Ch. 16 - In his work with pneumonia-causing bacteria and...Ch. 16 - What is the basis for tlie difference in how the...Ch. 16 - In analyzing the number of different bases in a...Ch. 16 - Prob. 4TYUCh. 16 - In a nucleosome, the DNA is wrapped around (A)...Ch. 16 - E. coli cells grown on, 15N medium are transferred...Ch. 16 - A biochemist isolates, purifies, and combines in a...Ch. 16 - The spontaneous loss of amino groups from adenine...Ch. 16 - MAKE CONNECTIONS Although the proteins that cause...Ch. 16 - EVOLUTION CONNECTION Some bacteria may be able to...Ch. 16 - Prob. 11TYUCh. 16 - Prob. 12TYUCh. 16 - Prob. 13TYU
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