Biology: The Dynamic Science
Biology: The Dynamic Science
4th Edition
ISBN: 9781337246422
Author: Peter J. Russell; Paul E. Hertz; Beverly McMillan
Publisher: Cengage Learning US
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 17, Problem 1TYK
Summary Introduction

Introduction:

Bacterial recombination is a type of genetic recombination in that bacterial DNA (deoxyribonucleic acid) is transferred from one bacterial cell (donor) to another bacterium (recipient) to generate genetic variability. This process takes place mainly in three ways, which are transformation, transduction, and conjugation.

Expert Solution & Answer
Check Mark

Answer to Problem 1TYK

Correct answer:

The differences in the genes of bacteria can be studied by measuring the passage of genes between cells during conjugation, transduction, and transformation.

Explanation of Solution

Justification/explanation for the correct answer:

Option (e) states that the differences in genes of bacteria can be measured by the flow of genes between cells during conjugation, transduction, and transformation. The transfer of genetic information between individuals in recombination can be measured from the existence of recombinants produced from the genetic recombination. The time and order of the genes can be noted down that were transferred to the recombinants. Then, the genes can be mapped and assign in their particular positions. This can be done majorly in conjugation. Hence, option (e) is correct.

Explanation for the incorrect answer:

Option (a) states that the bacteria cannot be grown on minimal media as the media lacks essential nutrients while studying the differences in bacterial genes. The differences in the genes of the bacteria can also be studied by growing bacteria on a minimal medium for screening recombinants or conjugants. The recombinants can be differentiated from the nonrecombinants by growing them on different media, which favors them. So, it is an incorrect option.

Option (b) states that the bacterial clone, which is a group of cells from different bacteria of varying genetic make-up can be used to study the differences in bacterial genes. The passage of genes between the cells can be studied through different recombination processes. The genes in recombinants can be studied using bacterial clone, which are genetically identical cells of the same bacteria. So, it is an incorrect option.

Option (c) states that the bacterial diploid is used because of their ability to grow on minimal medium, for studying the differences in genes. Bacteria becomes partial diploid (merozygote) when recombination takes place. These are then grown on minimal media for differentiating them from nonrecombinants and to study the differences in the genes of bacteria. So, it is an incorrect option.

Option (d) states that only one genetic trait can be studied in a single recombinant event. The recipient cell or the recombinant can be tested for the presence of multiple genetic traits (multiple donor alleles) in a single recombinant event. So, it is an incorrect option.

Hence, options (a), (b), (c), and (d) are incorrect.

Conclusion

Therefore, it can be concluded that the differences in the genes of bacteria can be studied by measuring the passage of genes between the cells during conjugation, transduction, and transformation with the help of horizontal gene transfer determinations.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Molecular Biology Please help with question. thank you You are studying the expression of the lac operon. You have isolated mutants as described below. In the presence of glucose, explain/describe what would happen, for each mutant, to the expression of the lac operon when you add lactose AND what would happen when the bacteria has used up all of the lactose (if the mutant is able to use lactose).5. Mutations in the lac operator that strengthen the binding of the lac repressor 200 fold 6. Mutations in the promoter that prevent binding of RNA polymerase 7. Mutations in CRP/CAP protein that prevent binding of cAMP8. Mutations in sigma factor that prevent binding of sigma to core RNA polymerase
Molecular Biology Please help and there is an attached image. Thank you. A bacteria has a gene whose protein/enzyme product is involved with the synthesis of a lipid necessary for the synthesis of the cell membrane. Expression of this gene requires the binding of a protein (called ACT) to a control sequence (called INC) next to the promoter. A. Is the expression/regulation of this gene an example of induction or repression?Please explain:B. Is this expression/regulation an example of positive or negative control?C. When the lipid is supplied in the media, the expression of the enzyme is turned off.Describe one likely mechanism for how this “turn off” is accomplished.
Molecular Biology Please help. Thank you. Discuss/define the following:(a) poly A polymerase (b) trans-splicing (c) operon
Knowledge Booster
Background pattern image
Biology
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
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Text book image
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Text book image
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Text book image
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Text book image
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Biology
ISBN:9781305967359
Author:STARR
Publisher:CENGAGE L
Text book image
Understanding Nutrition (MindTap Course List)
Health & Nutrition
ISBN:9781337392693
Author:Eleanor Noss Whitney, Sharon Rady Rolfes
Publisher:Cengage Learning
Genome Annotation, Sequence Conventions and Reading Frames; Author: Loren Launen;https://www.youtube.com/watch?v=MWvYgGyqVys;License: Standard Youtube License