EBK BROCK BIOLOGY OF MICROORGANISMS
15th Edition
ISBN: 8220103633352
Author: Stahl
Publisher: PEARSON
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Textbook Question
Chapter 1.12, Problem 1CR
Describe the experiments that proved DNA to be the molecule at the basis of heredity.
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describe one experiment that helped solve the puzzle concerning the nature of the genetic material
Several experiments aided the discovery of DNA being the inheritable material. Which of the following experiments clearly demonstrated DNA, not protein, was the inheritable material?
1) Proposed a double-helix model of DNA
2) Found the amount of adenine equals the amount of thymine and the amount of guanine equals the amount of cytosine.
Chapter 1 Solutions
EBK BROCK BIOLOGY OF MICROORGANISMS
Ch. 1.1 - In what ways are microorganisms important to...Ch. 1.1 - Why are microbial cells useful for understanding...Ch. 1.1 - What is a microbial colony and how is one formed?Ch. 1.1 - What are bacterial colonies and how are they...Ch. 1.2 - What structures are universal to all types of...Ch. 1.2 - Prob. 2MQCh. 1.2 - What structures can be used to distinguish between...Ch. 1.2 - Prob. 1CRCh. 1.3 - How old is Earth and when did cells first appear...Ch. 1.3 - Prob. 2MQ
Ch. 1.3 - Why were cyanobacteria so important in the...Ch. 1.3 - Prob. 1CRCh. 1.4 - Prob. 1MQCh. 1.4 - Prob. 2MQCh. 1.4 - Prob. 3MQCh. 1.4 - Prob. 1CRCh. 1.5 - Define the terms magnification and resolution.Ch. 1.5 - Prob. 2MQCh. 1.5 - Prob. 1CRCh. 1.6 - Prob. 1MQCh. 1.6 - Prob. 2MQCh. 1.6 - How can cells be made to fluoresce?Ch. 1.6 - Prob. 1CRCh. 1.7 - Prob. 1MQCh. 1.7 - Prob. 2MQCh. 1.7 - Prob. 1CRCh. 1.8 - Prob. 1MQCh. 1.8 - Prob. 2MQCh. 1.8 - Prob. 1CRCh. 1.9 - Prob. 1MQCh. 1.9 - Prob. 2MQCh. 1.9 - Besides ending the controversy over spontaneous...Ch. 1.9 - Explain the principle behind the Pasteur flask in...Ch. 1.10 - How do Kochs postulates ensure that cause and...Ch. 1.10 - What advantages do solid media offer for the...Ch. 1.10 - Prob. 3MQCh. 1.10 - Prob. 1CRCh. 1.11 - What is meant by the term enrichment culture?Ch. 1.11 - Prob. 2MQCh. 1.11 - What were the major microbiological interests of...Ch. 1.12 - Describe the experiments that proved DNA was the...Ch. 1.12 - Why are microbial cells useful tools for basic...Ch. 1.12 - Describe the experiments that proved DNA to be the...Ch. 1.13 - What kinds of evidence support the three-domain...Ch. 1.13 - What is a phylogenetic tree?Ch. 1.13 - List three reasons why rRNA genes are suitable for...Ch. 1.13 - What insights led to the reconstruction of the...Ch. 1.14 - How are viruses different from Bacteria, Archaea,...Ch. 1.14 - What four bacterial phyla contain the most...Ch. 1.14 - Prob. 3MQCh. 1.14 - What features (or lack of features) can be used to...Ch. 1 - Pasteurs experiments on spontaneous generation...Ch. 1 - Describe the lines of proof Robert Koch used to...Ch. 1 - Imagine that all microorganisms suddenly...
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- Compare and contrast Pauling model of DNA to that of Watson & Crick.arrow_forwardModel organisms are those widely used by researchers who wish to understand basic processes that are common to many species. Bacteria such as Escherichia coli are model organisms for modern geneticists. Give three reasons why bacteria would be useful in genetic experiments.arrow_forwardExplain how Avery-MacLeod-McCarty experiment discovered that DNA is the genetic material.arrow_forward
- Watson and Crick’s discovery of DNA is clearly one of the most importantbiological discoveries in the last century. What advances in medicine and science can you think of that are built on knowing the structure of DNA?arrow_forwardDescribe the DNA helix proposed by Watson and Crickarrow_forwardDefine transformation in griffin's experiment.arrow_forward
- List and describe the processes that make up the central dogma of biology which provides the path for the flow of genetic information from DNA to the proteins that are synthesized and carry out the functions needed by the cell.arrow_forwardUsing sickle cell as an example, give a detailed description of how the effects of a base substitution can be traced from DNA level to the level of the whole organism.arrow_forwardExplain the history of knowledge of DNA structure before the model proposed by Watson and Crick.arrow_forward
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