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
Concept explainers
Question
Chapter 3.3, Problem 3TQ
Summary Introduction
To review:
The selection of cells lacking S-layer for evolution during laboratory culture conditions.
Introduction:
Evolution is defined as the change in heritable characteristics in biological populations in successive generations. These characteristic changes may include gene expression that passes from one parental generation to the next progeny generation. The evolutionary changes are carried out by the natural selection method.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Describe the four phases of bacterial cell division.
Where would horizontal gene transfer occur?
Where would sporogenesis occur?
If antibiotics generally target cells which are growing and dividing as fast as they can, when would antibiotics be most effective?
If a culture had 4 cells to begin with and has a generation time of 60 minutes, how long would it take to get 1,048,576 cells?
What is the most important reason for evolution of bacteria? Explain briefly.
Which method have been utilized to identify and therapy of cancer by determining
proteomic markers?
Microbiologists announced the discovery of over 30 new species of bacteria that thrivebetween the teeth and gums of humans. The bacteria could not be grown in the researchers’ laboratories,nor were any of them ever observed via any kind of microscopy. If they couldn’t culture them or see them,how could the researchers know they had discovered new species? If they couldn’t examine the cells for thepresence of a nucleus, how did they determine that the organisms were prokaryotes and not eukaryotes?
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
- What is one argument against the idea that the nucleus has also become part of a eukaryotic cell via an endosymbiosis event?arrow_forwardWhy is it favorable for protozoa to replicate with schizogony versus using simple mitosis? what are the different scenarios that can occur with regards to bacterial growth within a thioglycolate tube? Explain why certain bacteria require one classification versus a different classification. A botanist has been using betaproteobacteria to grow his herb garden, because betaproteobacteria require little nutrients to grow. His garden does not grow successfully, so he comes to you for help to develop the herb garden. Which class of gram negative bacteria would you suggest and why? Why was the botanist’s original idea not going to work?arrow_forwardWhat is differential centrifugation? Explain how it can be used to separate cellular organelles.arrow_forward
- In a species of ciliated protist, a segment of genomic DNA is sometimes deleted. The deletion is a genetically programmed reaction associated with cellular mating. A researcher proposes that the DNA is deleted in atype of recombination called site-specific recombination, with the DNA at either end of the segment joined together and the deleted DNA ending up as a circular DNA reaction product. Suggest how the researcher might use the polymerase chain reaction (PCR) to detect the presence of the circular form of the deleted DNA in an extract of the protistarrow_forwardWhat is the endosymbiotic theory? Discuss two lines of evidence that support the theory.arrow_forwardBacteria that live in the digestive systems of cows help break down the plants that cows eat, providing nutrients to cows. The digestive systems of cows offer a safe environment in which the bacteria can live and reproduce. Which type of realationship exist between the bacteria and the cows?arrow_forward
- How would you use cytometric cell sorting toevaluate genome sequence variation among a minorpopulation of marine bacteria?arrow_forwardDiscuss whether the phenomenon of reproductive isolation applies to bacteria, which reproduce asexually. How would a geneticist divide bacteria into separate species?arrow_forwardUnder the endosymbiotic theory for the origin of the eukaryotic cell. The ancestor of mitochondria and chloroplasts original became part of mutualism with a larger host cell. Which of the following best explains this mutualism? A) The mitochondria and chloroplasts provided specialized reproduction as part of the proto-germ line while the larger host cell provided energy for growth and reproduction. B) The mitochondria and chloroplasts provided gene products that could be used by the larger host cell for improved parasitization. C) The mitochondria and chloroplasts provided molecular energy in return for protection by the larger host cell. D) The mitochondria and chloroplasts produce toxins that the larger cell utilized to defend itself from other cells mutually increasing the defense of all those involved.arrow_forward
- What would be the evolutionary advantage of having a period of natural “competence” in a bacterial life cycle? What would be possible disadvantages?arrow_forwardAlexander Fleming was working with bacteria called staphylococcus, which looked like bunches of grapes under the microscope. He could grow colonies of these bacteria on petri dishes with a growth medium. When he returned from vacation, he found that several of these dishes had become contaminated with a fungus. The colonies near where the fungus was growing had been destroyed. Fleming then grew the mold and purposefully added it to a petri dish that contained bacteria colonies. The colonies exposed to the mold died. Fleming named the substance within the mold that killed bacteria "penicillin." REASONING: If mold contains a substance that kills bacteria, then ... a) bacteria exposed to mold would be destroyed b) bacteria could be grown on a growth medium c) fungus can be grown as easily as bacteriaarrow_forwardWhy is the Endosymbiotic theory so important?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
cell culture and growth media for Microbiology; Author: Scientist Cindy;https://www.youtube.com/watch?v=EjnQ3peWRek;License: Standard YouTube License, CC-BY