Evolution and Selection Teacher Guide2

pdf

School

University of South Florida *

*We aren’t endorsed by this school

Course

3312

Subject

Biology

Date

Feb 20, 2024

Type

pdf

Pages

Uploaded by CoachDiscovery9345

5. Based on its effect on E.coli, why is triclosan used as a cleaning agent? It kills or prevents the growth of some types of bacteria. 6. Suppose the desktop swabbed eatlier was cleaned with a solution containing triclosan. Would living £.coli remain? Support your answer, Yes, variant § grew on the plates containing triclosan afier the initial swab. 7. Suppose the desktop was swabbed again after cleaning it with triclosan over a 9-month school year. When the sample was cultured only variant S was seen. a. What characteristic does the variant S bacteria have that allows it to remain on the desktop even after several months of treatment with triclosan? A trait that prevents the triclosan from affecting or killing the bacteria and allows them to grow even when triclosan is present. b. Is it likely that the bacteria in the new swab were on the desk 9-months ago, or are they off- spring of the original bacteria? They are the offspring of the original bacteria. ¢. Propose an explanation for the presence of only variant S on the desktop after so much time. Only variant S would survive to reproduce in this environment. The triclosan-resistance trait would be passed on to the offipring. Other bacteria would be inbibited or killed by triclosan and would probably not reproduce, eventually dying out completely. Only bacteria that are resistant to triclosan and their offspring would remain. Read This! Populations of most living organisms exhibit genetic diversity among individuals. Certain traits in a popularion give some organisms a greater chance of survival than individuals that lack these traits. Because these traits tend to increase the chance of survival, these individuals may produce more offspring that will also have the trait that favors survival. Over time, the number of individuals within the population pos- sessing the favorable trait increases while the number of offspring with the favorable trait decreases. 164 POGIL™ Activities for High School Biology

Discover more documents: Sign up today!

Unlock a world of knowledge! Explore tailored content for a richer learning experience. Here's what you'll get:

Access to all documents
Unlimited textbook solutions
24/7 expert homework help

Related Documents

Lab Report 1.docx

Copy of R2- Practice Problems.docx

Homework - Infidelity gene Central Dogma Problemset Gautier.docx

Case study for COVID-19 -.docx

INDG 1220 Study Guide.docx

Evolution and Selection Teacher Guide.pdf

Evolution and Selection Teacher Guide6.pdf

lab 5.pdf

annotated-Lab%20Exercise%20U1_Part%204%20Blood%20Typing%20%26%20Pedigrees.pdf

Problem Set 4 Spring 2024.docx

Arthropod Diversity .docx

Ex3_4_ComparativeProteomics_SP24.docx

Recommended textbooks for you

Biology 2e

Biology

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:OpenStax

Human Heredity: Principles and Issues (MindTap Co...

Biology

ISBN:9781305251052

Author:Michael Cummings

Publisher:Cengage Learning

Aquaculture Science

Biology

ISBN:9781133558347

Author:Parker

Publisher:Cengage

Comprehensive Medical Assisting: Administrative a...

Nursing

ISBN:9781305964792

Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa

Publisher:Cengage Learning

Principles Of Pharmacology Med Assist

Biology

ISBN:9781337512442

Author:RICE

Publisher:Cengage

Biology: The Dynamic Science (MindTap Course List)

Biology

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Cengage Learning

SEE MORE TEXTBOOKS

Recommended textbooks for you

Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Aquaculture Science
Biology
ISBN:9781133558347
Author:Parker
Publisher:Cengage
Comprehensive Medical Assisting: Administrative a...
Nursing
ISBN:9781305964792
Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Publisher:Cengage Learning
Principles Of Pharmacology Med Assist
Biology
ISBN:9781337512442
Author:RICE
Publisher:Cengage
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning