Ancestor 20 10 0 profloxacin thromycin tracycline

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
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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You test the same bacteria used to perform the experiment in the graph below for resistance to penicillin and you find that the "%MIC of ancestor"  is 95.

Is phage treatment better, worse, or about the same, at reducing resistance to penicillin as it is to erythromycin?

The bar graph illustrates the minimum inhibitory concentration (MIC) of three antibiotics—Ciprofloxacin, Erythromycin, and Tetracycline—expressed as a percentage relative to their ancestral strains.

### Key Features:
- **Y-Axis:** Represents the percent MIC of the ancestor, ranging from 0 to 60.
- **X-Axis:** Lists the three antibiotics: Ciprofloxacin, Erythromycin, and Tetracycline.
- **Bars:**
  - **Ciprofloxacin:** Shows a low percentage, slightly above 10%, with a narrow error bar range.
  - **Erythromycin:** Displays a higher percentage, close to 30%, with a broad range as indicated by the error bar.
  - **Tetracycline:** Indicates a percentage below 20%, with a moderately wide error bar range.

### Interpretation:
This graph is used to compare the effectiveness of these antibiotics relative to their ancestral strains, with Erythromycin showing higher variability and effectiveness compared to Ciprofloxacin and Tetracycline. The range of the error bars suggests variability in experimental results or population responses.
Transcribed Image Text:The bar graph illustrates the minimum inhibitory concentration (MIC) of three antibiotics—Ciprofloxacin, Erythromycin, and Tetracycline—expressed as a percentage relative to their ancestral strains. ### Key Features: - **Y-Axis:** Represents the percent MIC of the ancestor, ranging from 0 to 60. - **X-Axis:** Lists the three antibiotics: Ciprofloxacin, Erythromycin, and Tetracycline. - **Bars:** - **Ciprofloxacin:** Shows a low percentage, slightly above 10%, with a narrow error bar range. - **Erythromycin:** Displays a higher percentage, close to 30%, with a broad range as indicated by the error bar. - **Tetracycline:** Indicates a percentage below 20%, with a moderately wide error bar range. ### Interpretation: This graph is used to compare the effectiveness of these antibiotics relative to their ancestral strains, with Erythromycin showing higher variability and effectiveness compared to Ciprofloxacin and Tetracycline. The range of the error bars suggests variability in experimental results or population responses.
Expert Solution
Step 1: Correct answer

Based on the graph given here, we can say that the phage treatment is worse at reducing resistance to penicillin than it is to erythromycin.

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