BIOLOGY DUAL ENROLLMENT VERSION
12th Edition
ISBN: 9780136681311
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 12.3, Problem 1CC
In Figure 12.14, why do the nuclei resulting from experiment 2 contain different amounts of DNA?
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Neema wants to determine whether or not the nucleus of a cell differs in the chemical compounds they contain or not from species to species. She is planning on working with the nucleus of a human and the nucleus of a mouse. She has removed all of the DNA from each nucleus, then has selected and isolated one DNA fragment from each species. What results can Neema expect if she takes the human DNA fragment and inserts it into the mouse nucleus and then inserts the mouse DNA fragment into the human nucleus? Use your knowledge of DNA replication to answer.
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Chapter 12 Solutions
BIOLOGY DUAL ENROLLMENT VERSION
Ch. 12.1 - How many chromosomes are drawn in each part of...Ch. 12.1 - WHAT IF? A chicken has 78 chromosomes in its...Ch. 12.2 - How many chromosomes are shown in the illustration...Ch. 12.2 - Compare cytokinesis in animal cells and plant...Ch. 12.2 - During which stages of the cell cycle does a...Ch. 12.2 - Compare the roles of tubulin and actin during...Ch. 12.2 - A kinetochore has been compared to a coupling...Ch. 12.2 - MAKE CONNECTIONS What other functions do actin...Ch. 12.3 - In Figure 12.14, why do the nuclei resulting from...Ch. 12.3 - How does MPF allow a cell to pass the G2 phase...
Ch. 12.3 - MAKE CONNECTIONS Explain how receptor tyrosine...Ch. 12 - Differentiate between these terms: chromosome,...Ch. 12 - In which of the three phases of interphase and the...Ch. 12 - Explain the significance of the G1, G2, and M...Ch. 12 - Through a microscope, you can see a cell plate...Ch. 12 - Vinblastine is a standard chemotherapeutic drug...Ch. 12 - One difference between cancer cells and normal...Ch. 12 - The decline of MPF activity at the end of mitosis...Ch. 12 - In the cells of some organisms, mitosis occurs...Ch. 12 - Which of the following does not occur during...Ch. 12 - Cell A has half as much DNA as cells B, C, and D...Ch. 12 - The drug cytochalasin B blocks the function of...Ch. 12 - VISUAL SKILLS The light micrograph shows dividing...Ch. 12 - DRAW IT Draw one eukaryotic chromosome as it would...Ch. 12 - EVOLUTION CONNECTION The result of mitosis is that...Ch. 12 - SCIENTIFIC INQUIRY Although both ends of a...Ch. 12 - WRITE ABOUT A THEME: INFORMATION The continuity of...Ch. 12 - SYNTHESIZE YOUR KNOWLEDGE For selected answers,...
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- If you are given a sample of chromosomal DNA, what experiment could you perform to determine whether the DNA is prokaryotic or eukaryotic? What would your hypothesis be and describe how your expected results would be supported or not supported?arrow_forwardDoes the design of the Hershey–Chase experiment distinguish between DNA and RNA as the molecule serving as the genetic material? Why or why not?arrow_forwardIf you tiled a floor with the planar rings from the bases of all the DNA molecules of living creatures on Earth, approximately how many times could you cover the Earth’s surface? This is meant to be an estimation/Fermi problem so it does not have to be exact.arrow_forward
- You are trying to determine the base content for a number of samples in the lab (mouse DNA, bacterial DNA, single-stranded DNA virus and double-stranded RNA virus). Unfortunately, you failed to use an alcohol-proof marker and during the ethanol precipitation of your samples the labels came off the tubes. You finish the experiment anyway and try to use the data to determine the samples. Can you determine the source of each sample based on your results? Briefly explain how you come to your designations. Sample % adenine % cytosine % guanine % thymine % uracil A 18 32 32 18 0 B 26 18 32 24 0 C 31 19 19 0 31 D 10 40 40 10 0arrow_forwardThe diagram below represents results of agarose gel electrophoresis performed after PCR amplification of a molecular marker in diploid organisms. Answer the following questions: a) How many individuals are homozygous and how many are heterozygous? b) How many alleles are there in this population?arrow_forwardIn three sentences describe how Sanger sequencing worksarrow_forward
- what is the significance of famous dna structure experiment?arrow_forward1. What elements were present in the primordial atmosphere? 2. What hypothesis can be made from Urey-Miller experiment? 3. What experimental results did the Urey- Miller experiment produce? 4. Explain the relevance of the chemicals used by Urey and Miller in their experiment 5. How did the results of their experiment support their hypothesis? 6-Describe the environmental conditions on the Earth 3500mva that Urey and Miller were trying to replicate.arrow_forwardThere are three basic steps of DNA extraction: cell lysis, separation, and extraction. In the procedure for extracting DNA from human cheek cells, which parts belong to or explain the aforementioned three basic steps? You may refer to the following procedure: http://www.planet-science.com/categories/experiments/biology/2012/03/extract-your-own-dna.aspxarrow_forward
- Would you expect RNA molecules to behave in the same manner as DNA during gel electrophoresis?arrow_forwardWhat are the answers to the following images and use evidence to support your answer?arrow_forwardSince DNA is a hydrophillicmoelcule, it cannot pass through cell membranes. Name and explain the technique with which the DNA is forced into (ii) a bacterial cell (ii) a plant cell (iii) an animal cell.arrow_forward
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