Homework Help is Here – Start Your Trial Now!
Science
Biology
1- How would you describe the Lenski experiment and its significance? Could you provide a concise explanation of the experiment in no more than half a page? Afterward, please create a visual representation of the experiment using your own drawings. You can utilize digital applications, such as Paint or tablet-based drawing tools, or hand-draw the diagram and capture it in a photograph. The visual representation should be schematic in nature, demonstrating the key components of the experiment. (you can draw the plates, bacteria etc. I need an explanative image that created by YOU. Any screenshot is not allowed. You can use paint, any application on your tablets or you can draw it by hand and take a picture. You need to create a schematic diagram. Here is an example for schematic diagram): FH +EOP $25 regulation in turn, SN samar GFR E Oil www de EGF in sy endomes Sustained ning of

1- How would you describe the Lenski experiment and its significance? Could you provide a concise explanation of the experiment in no more than half a page? Afterward, please create a visual representation of the experiment using your own drawings. You can utilize digital applications, such as Paint or tablet-based drawing tools, or hand-draw the diagram and capture it in a photograph. The visual representation should be schematic in nature, demonstrating the key components of the experiment. (you can draw the plates, bacteria etc. I need an explanative image that created by YOU. Any screenshot is not allowed. You can use paint, any application on your tablets or you can draw it by hand and take a picture. You need to create a schematic diagram. Here is an example for schematic diagram): FH +EOP $25 regulation in turn, SN samar GFR E Oil www de EGF in sy endomes Sustained ning of

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
See similar textbooks
icon
Related questions
icon
Concept explainers
Question
### Lenski Experiment and its Significance #### Overview The Lenski experiment, established by Richard Lenski, is a long-term study of the evolutionary process in Escherichia coli (E. coli) bacteria. Initiated in 1988, this experiment involves daily propagation of 12 populations of E. coli in a controlled environment, allowing scientists to observe evolutionary changes in real-time over tens of thousands of generations. #### Significance 1. **Real-Time Evolution Observation**: By tracking over 70,000 generations, the experiment offers unparalleled insights into the dynamics of evolution, including the rate of beneficial mutations and the role of natural selection. 2. **Adaptation Studies**: The experiment has demonstrated how single-celled organisms adapt to consistent environments, providing data on genetic changes and phenotypic adaptations. 3. **Genomic Evolution**: Continuous sequencing of E. coli genomes allows researchers to correlate specific genetic mutations with phenotypic changes, offering a direct link between genotype and phenotype evolution. 4. **Historical Contingency**: The emergence of novel traits, such as the ability to metabolize citrate in some E. coli populations (an unusual trait for E. coli), underscores the role of rare, chance events in evolution. Left to the student is the construction of a personal schematic of the experiment. They can use tools like Paint, tablet-based drawing applications, or hand-drawing to represent key components such as petri dishes, bacterial cultures, and lab equipment. ### Schematic Diagram Explanation (Example) Below is an example schematic of the key components involved in a typical biological experiment, focusing on the effects of adding EGF (Epidermal Growth Factor) and silencing SNX3 on human cancer cells. #### Figure Explanation Figure A (Top Section): 1. **EGF Addition**: - EGF is added to cells. - Early responses (2-30 minutes) include phosphorylation (activation) of proteins MC10A and MCP10A. - Subsequent gene transcription alterations within the same time frame. - Late responses (1-6 hours) entail further gene transcription recommendations triggered by EGF. Figure B (Bottom Section): 1. **SNX3 Silencing**: - Knockdown of SNX3 leads to a decrease in phosphorylation and expression of growth and survival genes. - Experimentation on mice shows that silenced SNX3 within tumors alters metabolism, proliferation, migration, and
Transcribed Image Text:### Lenski Experiment and its Significance #### Overview The Lenski experiment, established by Richard Lenski, is a long-term study of the evolutionary process in Escherichia coli (E. coli) bacteria. Initiated in 1988, this experiment involves daily propagation of 12 populations of E. coli in a controlled environment, allowing scientists to observe evolutionary changes in real-time over tens of thousands of generations. #### Significance 1. **Real-Time Evolution Observation**: By tracking over 70,000 generations, the experiment offers unparalleled insights into the dynamics of evolution, including the rate of beneficial mutations and the role of natural selection. 2. **Adaptation Studies**: The experiment has demonstrated how single-celled organisms adapt to consistent environments, providing data on genetic changes and phenotypic adaptations. 3. **Genomic Evolution**: Continuous sequencing of E. coli genomes allows researchers to correlate specific genetic mutations with phenotypic changes, offering a direct link between genotype and phenotype evolution. 4. **Historical Contingency**: The emergence of novel traits, such as the ability to metabolize citrate in some E. coli populations (an unusual trait for E. coli), underscores the role of rare, chance events in evolution. Left to the student is the construction of a personal schematic of the experiment. They can use tools like Paint, tablet-based drawing applications, or hand-drawing to represent key components such as petri dishes, bacterial cultures, and lab equipment. ### Schematic Diagram Explanation (Example) Below is an example schematic of the key components involved in a typical biological experiment, focusing on the effects of adding EGF (Epidermal Growth Factor) and silencing SNX3 on human cancer cells. #### Figure Explanation Figure A (Top Section): 1. **EGF Addition**: - EGF is added to cells. - Early responses (2-30 minutes) include phosphorylation (activation) of proteins MC10A and MCP10A. - Subsequent gene transcription alterations within the same time frame. - Late responses (1-6 hours) entail further gene transcription recommendations triggered by EGF. Figure B (Bottom Section): 1. **SNX3 Silencing**: - Knockdown of SNX3 leads to a decrease in phosphorylation and expression of growth and survival genes. - Experimentation on mice shows that silenced SNX3 within tumors alters metabolism, proliferation, migration, and
Expert Solution
steps

Step by step

Solved in 3 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Pre-Darwinian concepts
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
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
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)
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
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)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education
SEE MORE TEXTBOOKS