Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 16, Problem 3TYU
In analyzing the number of different bases in a DNA sample, which result would be consistent with the base-pairing rules?
(A) A = G
(B) A+G = C+T
(C) A+T = G+C
(D) A = C
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Chapter 16 Solutions
Campbell Biology
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 - Prob. 2CCCh. 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 - Prob. 16.3CRCh. 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 - The elongation of the leading Strand during DNA...Ch. 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 - SCIENTIFIC INQUIRY DRAW IT Model building can be...Ch. 16 - Prob. 12TYUCh. 16 - Prob. 13TYU
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- Let’s assume the linker region of DNA averages 54 bp in length. How many molecules of H2A would you expect to find in a DNA sample that is 46,000 bp in length?arrow_forwardThe DNA chromosome in E. coli contains approximately 4 million base pairs. The average gene contains about 1500 base pairs. Use this information to calculate the following (show all work ): a) The length in meters of this chromosome. b) The approximate number of genes in the chromosome (assuming no wasted DNA).arrow_forwardA solution contains DNA polymerase and the Mg ²+ salts of dATP, dGTP, dCTP, and TTP. The following DNA molecules are added to aliquots of this solution. Which of them would lead to DNA synthesis? (a) A single-stranded closed circle containing 1000 nucleotide units. (b) A double-stranded closed circle containing 1000 nucleotide pairs. (c) A single-stranded closed circle of 1000 nucleotides base-paired to a linear strand of 500 nucleotides with a free 3' -OH terminus. (d) A double-stranded linear molecule of 1000 nucleotide pairs with a free 3’-OH group at each end.arrow_forward
- Ethanol promotes bonding between Na+ ions from the salt and charged phosphate group of the DNA due to a higher dielectric constant than water. True or False?arrow_forwardWith regard to Chargaff’s experiment described in Figure shown,answer the following:A. What is the purpose of paper chromatography?B. Explain why it is necessary to remove the bases in order todetermine the base composition of DNA.C. Would Chargaff’s experiments have been convincing if theyhad been done on DNA from only one species? Discuss.arrow_forwardWhen DNA is heated, it denatures; that is, the strands separate because hydrogen bonds are broken and some base-stacking and hydrophobic interactions are disrupted. The higher the temperature, the larger the number of hydrogen bonds that are broken. After reviewing DNA base pair structure, determine which of the following molecules will denature first as the temperature is raised. Explain your reasoning. a. 5′-GCATTTCGGCGCGTTA-3′ 3′-CGTAAAGCCGCGCAAT-5′ b. 5′-ATTGCGCTTATATGCT-3′ 3′-TAACGCGAATATACGA-5′arrow_forward
- A) Which molecule in the gel is the smallest - A, B, C, or D? Explain how you determined this. B) Identify one lane in this gel (1, 2, 3, 4, 5, 6, or 7) that shows evidence of DNase treatment. Explain how you determined this.arrow_forwardThe given figure shows the denaturation curves for three DNA samples. A) What is the ?m of the most GC-rich DNA sample? B) Which point represents double-stranded DNA?arrow_forwardGiven the sequence shown below, write the complementary DNA sequence, using the base-pairing rules, as well as the directionality of the strands: 5'- CGAGGCTAGGTTAACCTG-3'arrow_forward
- a) Explain the effect of the guanine:cytosine ratio on melting temperature of DNA. b) The Hershey-Chase experiment proved that DNA is the genetic material and not protein. Explain in detatil how this experiment was conducted.arrow_forwardGive the sequence of unpaired bases that would be sticky with the following sequences:(a) GGTAC (b) ACCCA (c) GTGTCarrow_forwardIn a Sanger DNA sequencing reaction (dideoxy method) you use the primer 5′-GCATATA-3′ to sequence a DNA strand that starts with the sequence 3′-CGTATATCCCTACGTTGG-5′ (consider the strand about 100-nucleotide long). You try your sequencing reaction three times, but every time you make a mistake, as indicated below. What would be the outcome in each case? Justify your answers. (a) You forgot to add dCTP (b) You forgot to add ddCTP (c) Your primer is complementary to two regions in the DNA to be sequenced.arrow_forward
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