Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 14, Problem 4RQ
If DNA of a particular species was analyzed and it was found that it contains 27 percent A, what would be the percentage of C?
- 27 percent
- 30 percent
- 23 percent
- 54 percent
Expert Solution & Answer
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Students have asked these similar questions
Four nucleic-acid samples are analyzed to determine the percentages of nucleotides they contain. Survey the data in the table below to determine which samples are DNA and which are RNA, and specify whether each sample is double-stranded or single-stranded. Justify each answer (DNA and RNA can be both single and double-stranded).
A
G
T
U
C
Sample 1
23%
27%
23%
0
27%
Sample 2
35%
35%
0
15%
15%
Sample 3
17%
33%
0
17%
33%
Sample 4
30%
30%
20%
0
20%
Sample A is
Sample B is
Sample C is
Sample D is
Chargaff's Rule implies the percentage of adenine-thymine pairs and the
percentage of cytosine-guanine pairs equals 100. What is the approximate
percentage guanine in the sample rat DNA? *
Organism
%A
%G
%C
Octopus
32.8
17.3
32.2
Rat
28.6
28.4
21.4
Human
29.1
20.7
20.3
Grasshopper
20.5
29.3
20.5
21%
29%
17%
33%
Chargaff's Rule implies the percentage of adenine-thymine pairs and the
percentage of cytosine-guanine pairs equals 100. What is the approximate
Sig
In an analysis of the number of different bases in a DNA sample, which
result would be consistent with the base-pairing rules? *
A+T>G+C
O AC+T
Chapter 14 Solutions
Biology 2e
Ch. 14 - Figure 14.10 In eukaryotic cells, DNA and RNA...Ch. 14 - Figure 14.14 You isolate a cell strain in which...Ch. 14 - Figure 14.21 A fr am eshift mutation that results...Ch. 14 - If DNA of a particular species was analyzed and it...Ch. 14 - The experiments by Hershey and Chase helped...Ch. 14 - Bacterial transformation is a major concern in...Ch. 14 - DNA double helix does not have which of the...Ch. 14 - In eukaryotes, what is the DNA wrapped around?...Ch. 14 - Meselson and Stahl's experiments proved that DNA...Ch. 14 - If the sequence of the 5'-3' strand is AATGCTAC,...
Ch. 14 - How did Meselson and Stahl support Watson and...Ch. 14 - Which of the following components is not involved...Ch. 14 - Which of the following does the enzyme primase...Ch. 14 - In which direction does DNA replication take...Ch. 14 - A scientist randomly mutates the DNA of a...Ch. 14 - The ends of the linear chromosomes are maintained...Ch. 14 - Which of the following is not a true statement...Ch. 14 - During proofreading, which of the following...Ch. 14 - The initial mechanism for repairing nucleotide...Ch. 14 - A scientist creates fruit fly larvae with a...Ch. 14 - Explain Griffith's transformation experiments What...Ch. 14 - Why were radioactive sulfur and phosphorous used...Ch. 14 - When Chargaffwas performing his experiments, the...Ch. 14 - Provide a brief summary of the Sanger sequencing...Ch. 14 - Describe the structure and complementary base...Ch. 14 - Prokaryotes have a single circular chromosome...Ch. 14 - How did the scientific community learn that DNA...Ch. 14 - Imagine the Meselson and Stahl experiments had...Ch. 14 - DNA replication is bidirectional and...Ch. 14 - What are Okazaki fragments and how they are...Ch. 14 - If the rate of replication in a particular...Ch. 14 - Explain the events taking place at the replication...Ch. 14 - What is the role of a primer in DNA replication?...Ch. 14 - Quinolone antibiotics treat bacterial infections...Ch. 14 - How do the linear chromosomes in eukaryotes ensure...Ch. 14 - What is the consequence of mutation of a mismatch...Ch. 14 - An adult with a history of tanning has his genome...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- You are provided with a sample of aardvark DNA. As part of your investigation of this DNA, you transcribe mRNA from the DNA and purify it. You then separate the two strands of the DNA and analyze the base composition of each strand and of the mRNA transcripts. You obtain the following results: A G C T UDNA strand #1 19.1 26.0 31.0 23.9 0DNA strand #1 24.2 30.8 25.7 19.3 0mRNA 19.0 25.9 30.8 0 24.3Which strand of the DNA is the “sense” strand that serves as the template for mRNA synthesis?arrow_forward33% Chargaff's Rule implies the percentage of adenine-thymine pairs and the percentage of cytosine-guanine pairs equals 100. What is the approximate percentage cytosine in the sample octopus DNA? * Organism %A %G %T %C Octopus 32.8 17.3 32.2 Rat 28.6 28.4 21.4 Human 29.1 20.7 20.3 20.5 29.3 20.5 Grasshopper O 21% 29% 17% 33% s and the Chargaff's Sign out & $ 8 9. @ 4 t r e f b O O O Oarrow_forwardWhich of the following combinations are true of the nucleotide composition of a sample of DNA? SELECT ALL ANSWERS THAT APPLY* C = A and G = T A +T = G+ C AxC = G x T A=T and C = G A-T= G-C A+C = G+ T DNA is made up of deoxyribose sugar, phosphate group and a nitrogen base. DNA is the genetic material that determines the traits of living things and is O O Oarrow_forward
- How do you think the DNA gel would look if those fragments were separated by gel electrophoresis? Select one of the provided pictures that fits best what you would expect to see.arrow_forwardDNA is isolated from concentrated ocean water. One genome is studied, and the proportion of each nucleotide is A = 15%, C = 35%, G = 35% and T = 15%. Is this genome from a dsDNA or ssDNA organism? Explain your reasoning. Is this organism AT-rich or GC-rich?arrow_forwardIn sheep DNA, the mol % of adenine (A) was found to be 28.3. Based on Chargaff's rule, what would be the approximate mol % of G, C, and T? mol % of G = mol % of C = mol % of T =arrow_forward
- Bacteria and other microbes can be used to "clean up" an oil spill by breaking down oil into carbon dioxide and water. Two samples isolated from the Deepwater Horizon leak in the Gulf of Mexico were labeled A and B. The DNA of each was isolated and the percent thymine measured in each sample. Sample A contains 19.3% thymine and sample B contains 27.9% thymine. Assume the organisms contain normal double-stranded DNA and predict the composition of the other bases. percent adenine in sample B: percent guanine in sample B: percent cytosine in sample B: Both samples are then denatured to remove the secondary structure. Which will have the higher temperature to denature? A B % A %G %Carrow_forwardBacteria and other microbes can be used to "clean up" an oil spill by breaking down oil into carbon dioxide and water. Two samples isolated from the Deepwater Horizon leak in the Gulf of Mexico were labeled A and B. The DNA of each was isolated and the percent thymine measured in each sample. Sample A contains 19.3% thymine and sample B contains 27.9% thymine. Assume the organisms contain normal double-stranded DNA and predict the composition of the other bases. percent adenine in sample A: percent guanine in sample A: percent cytosine in sample A: percent adenine in sample B: %A %G %C % Aarrow_forwardBacteria and other microbes can be used to "clean up" an oil spill by breaking down oil into carbon dioxide and water. Two samples isolated from the Deepwater Horizon leak in the Gulf of Mexico were labeled A and B. The DNA of each was isolated and the percent thymine measured in each sample. Sample A contains 18.1% thymine and sample B contains 28.9% thymine. Assume the organisms contain normal double-stranded DNA and predict the composition of the other bases. percent adenine in sample A: SA percent guanine in sumple A: percent cytosine in sample A: percent adenine in sample B}: percent guanine in sample B 5 percent cytosine in sample B Beth samples are then denatured to remove the secondary structure. Which will have the higher temperature to densture!arrow_forward
- A scientist made mistakes during DNA extraction. On his first attempt, he blended the sample too much for a long time. On his 2nd attempt, he used potassium acetate instead of sodium chloride. On his third attempt, he forgot to put C4H8O2.1. Which attempt would be the highest based on increasing DNA purity? what about by increasing DNA yield?2. Explain the effect of his mistakes in each of his attempts on the yield and purity of the DNA sample extracted.3. Which attempt would be the most successful? Why?arrow_forwardWhat allows the peaks to be different colors?arrow_forwardReview the table below. Nucleic acid from 4 different samples were analyzed to determine the amounts of nitrogenous bases in each. The amount is shown as a percentage. A G T U C Sample 1 22% 28% 22% 28% Sample 2 30% 30% 20% 20% Sample 3 18% 32% 18% 32% Sample 4 29% 29% 21% 21% What observations can you make from these data? Suggest at least two different observations. What conclusions can be supported by these observations? • Suggest one experiment that you could conduct to test or further investigate one of your conclusions from part b.arrow_forward
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