Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 3, Problem 2TQ
Summary Introduction
To review:
The generations after which the mutant strain would constitute 90% of the population in the given condition.
Introduction:
Â
A strain is described as the low-level rank of taxonomic intraspecific levels. The mutant strains of bacteria are defined by comparing them with a well-characterized reference strain, which is a wild strain type of that bacteria. The mutant strains are used for research studies and for several other purposes.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Suppose you isolated a mutant strain of yeast that replicates its DNA more than once per cell cycle. In other words, each gene in the genome was replicated several times between successive cell divisions. How might you explain such a phenomenon?
What have scientists discovered about the limiting factors that control how many times a cell can replicate itself and divide?
Question 10 options:
a)
Telomeres do not play a role as a limiting factor.
b)
Telomeres get longer the more times a cell has replicated and divided.
c)
When telomeres become too short (or disappear), a cell stops dividing.
d)
None of the above
Alternation of generations means
-One phase of the life cycle is photosynthetic and the other is heterotrophic.
-One phase of the life cycle is unicellular and the other is multicellular.
-One phase of the life cycle takes place on land and the other in water.
-One phase of the life cycle is multicellular diploid and the other is multicellular haploid.
-One phase of the life cycle is motile and the other is stationary.
Chapter 3 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Knowledge Booster
Learn more about
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
- Horizontal gene transfer probably started soon after endosymbiosis. It has resulted in genes being moved from the mitochondrion to the nucleus. What is a reasonable explanation for why some genes still remain in the mitochondria? A. The products of those genes are rapidly damaged and need to be quickly replaced. B. The products of those genes are not required for organelle function. C. The ability for lateral gene transfer ended about a billion years ago and some genes simply got “stuck” within mitochondria. D. The products of those genes are only needed in the mitochondria.arrow_forwardExamine the graph below. Considering that the plants with the most trichomes were selected to produce seeds in the parent population, which of the following results would you predict for the next generation? (The x-axis indicates the number of trichomes.)arrow_forwardAccording to the endosymbiosis theory, mitochondria and chloroplasts are derived from bacteria that took up residence withineukaryotic cells. At one time, prior to being taken up by eukaryoticcells, these bacteria were free-living organisms. However, we cannot take a mitochondrion or chloroplast out of a living eukaryoticcell and get it to survive and replicate on its own. Discuss why not.arrow_forward
- What are the albino seedlings using for energy? Will they be able to survive? How's it possible for a deleterious gene like that for feeblemindedness or hemophilia remains in a certain population?arrow_forwardIn a particular plant species, 2n=12. For this organism, how many chromosomes, and how many DNA molecules will be present per cell for each of the following? a) leaf in cell G1 b) leaf cell in G2 c)root meristem cell in metaphase of mitosis d) root meristem cell in anaphase of mitosis e) root meristem cell in telophase of mitosis (cytokinesis complete) f) microspore mother cell (in anther) in prophase 1 of meiosis g) microspore mother cell in metaphase II of meiosis h) pollen grain ( after meiosis is and cytokinesis complete)arrow_forwardYou isolate a cell from a eukaryotic species where n = 14. The cell contains 28 DNA molecules. choose best answer from the bolded words in each phrase: 1. The cell could/could not be at the end of stage G1 of the cell cycle, as the cell in this stage is diploid/haploid and each chromosome is made of 2/1 DNA molecule(s). 2. The cell could/could not be at the end of stage Metaphase I, as the cell in this stage is diploid/haploid and each chromosome is made of 2/1 DNA molecule(s). 3. The cell could/could not be at the end of stage Prophase II, as the cell in this stage is diploid/haploid and each chromosome is made of 2/1 DNA molecule(s).arrow_forward
- The diagram below represents single-celled organism A dividing by mitosis to form cells B andC. B cکړ Cells A, B, and C all produced protein X. What can best be inferred from this observation? A) The gene to produce protein X was passed from cell A to cells B and C. B) Cells A, B, and C ingested food containing the gene to produce protein X. C) The gene for protein X is found in single-celled organisms, only. D) Protein X is found in all organisms.arrow_forwardChloroplast DNA (cpDNA) and the DNA of free-living photosynthesizing bacteria called cyanobacteria have been found to share a high number of similarities. Which of the following claims best supports this finding? A Chloroplasts act as a reserve for some of the extra cpDNA of the cell. B с D Chloroplasts are believed to have originated from an endosymbiosis event. Chloroplasts have the capacity to exist as free-living bacteria outside of the cell. Chloroplasts and cyanobacteria evolved independently.arrow_forwardIn the experiment of cell fusion, when tumor cells were fused with normal cells, the initially formed tetraploid cells (or subsequently arising sub-tetraploid cells) were discovered to have lost the ability to form tumors. What is the explanation for this observation?arrow_forward
- Experiment: Saccharomyces cerevisiae can exist stably in either a haploid or a diploid state. A haploid S. cerevisiae cell has 16 chromosomes. When certain haploids come into contact, they fuse their cell walls and membranes, followed by the fusion of their nuclear membranes. The single nucleus now has 32 chromosomes, 16 from each parent strain, and is thus a diploid. Haploid yeast strains divide mitotically to give rise to haploid progeny, and diploid strains divide mitotically to give rise to diploid progeny. Certain haploids can fuse to form diploids. Haploid S. cerevisiae exists in two "mating types," called a and a. Mating occurs only between a and a cells; no mating occurs between cells of identical mating type. We have a collection of eight a haploid mutant strains and eight a haploid mutant strains of yeast unable to synthesize tryptophan (trp). These will be combined (mated) in all possible combinations to yield diploid strains. If the diploids can grow on minimal medium,…arrow_forwardLet us suppose that an organism began with 10 individuals. It then went on through 25 generations. How many individuals would then be present in the final generation? 3.4 6250 3.4 107 3.4 * 108arrow_forwardA scientist collects cells at various points in the cell cycle and isolates DNA from them. Using density-gradient centrifugation, she separates the nuclear DNA and mtDNA. She then measures the amounts of mtDNA and nuclear DNA present at different points in the cell cycle. On the following graph, draw a line to represent the relative amounts of nuclear DNA that you expect her to find per cell throughout the cell cycle. Then, draw a dotted line on the same graph to indicate the relative amounts of mtDNA that you would expect to see at different points throughout the cell cycle.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Cell Differentiation | Genetics | Biology | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=gwAz_BtVuLA;License: Standard YouTube License, CC-BY