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The following questions refer to the information and figure below. Experimental populations (average) 1.8- 1.6- 1.4- 1.2 /Ancestral population 1.0 5000 10 000 15 000 20 000 Generation In this eight-year experiment, 12 populations of E. coli, each begun from a single cell, were grown i low-glucose conditions for 20 000 generations. Each culture was introduced to a fresh growth medium every 24 hours. Occasionally, samples were removed from the populations, and their fitness in low-glucose conditions was tested against that of members sampled from the ancestral (common ancestor) E. coli population. Which of the following is less likely to promote bacterial survival over evolutionary time in a low- glucose environment? Increased sensitivity to, and ability to move toward, whatever glucose is present in its habitat Increased ability to synthesize glucose from amino acid precursors Increased efficiency at transporting glucose into the cell from the environment Increased ability to survive on simple sugars other than glucose Increased reliance on glycolytic enzymes Population growth rate (relative to ancestral population)

The following questions refer to the information and figure below. Experimental populations (average) 1.8- 1.6- 1.4- 1.2 /Ancestral population 1.0 5000 10 000 15 000 20 000 Generation In this eight-year experiment, 12 populations of E. coli, each begun from a single cell, were grown i low-glucose conditions for 20 000 generations. Each culture was introduced to a fresh growth medium every 24 hours. Occasionally, samples were removed from the populations, and their fitness in low-glucose conditions was tested against that of members sampled from the ancestral (common ancestor) E. coli population. Which of the following is less likely to promote bacterial survival over evolutionary time in a low- glucose environment? Increased sensitivity to, and ability to move toward, whatever glucose is present in its habitat Increased ability to synthesize glucose from amino acid precursors Increased efficiency at transporting glucose into the cell from the environment Increased ability to survive on simple sugars other than glucose Increased reliance on glycolytic enzymes Population growth rate (relative to ancestral population)

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,...
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The following questions refer to the information and figure below. Experimental populations (average) 1.8 - 1.6 1.4 1.2 - Ancestral population 1.0 5000 10 000 15 000 20 000 Generation In this eight-year experiment, 12 populations of E. coli, each begun from a single cell, were grown in low-glucose conditions for 20 000 generations. Each culture was introduced to a fresh growth medium every 24 hours. Occasionally, samples were removed from the populations, and their fitness in low-glucose conditions was tested against that of members sampled from the ancestral (common ancestor) E. coli population. Which of the following is less likely to promote bacterial survival over evolutionary time in a low- glucose environment? Increased sensitivity to, and ability to move toward, whatever glucose is present in its habitat Increased ability to synthesize glucose from amino acid precursors Increased efficiency at transporting glucose into the cell from the environment Increased ability to survive on simple sugars other than glucose Increased reliance on glycolytic enzymes Population growth rate (relative to ancestral population)
Transcribed Image Text:The following questions refer to the information and figure below. Experimental populations (average) 1.8 - 1.6 1.4 1.2 - Ancestral population 1.0 5000 10 000 15 000 20 000 Generation In this eight-year experiment, 12 populations of E. coli, each begun from a single cell, were grown in low-glucose conditions for 20 000 generations. Each culture was introduced to a fresh growth medium every 24 hours. Occasionally, samples were removed from the populations, and their fitness in low-glucose conditions was tested against that of members sampled from the ancestral (common ancestor) E. coli population. Which of the following is less likely to promote bacterial survival over evolutionary time in a low- glucose environment? Increased sensitivity to, and ability to move toward, whatever glucose is present in its habitat Increased ability to synthesize glucose from amino acid precursors Increased efficiency at transporting glucose into the cell from the environment Increased ability to survive on simple sugars other than glucose Increased reliance on glycolytic enzymes Population growth rate (relative to ancestral population)
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