The following questions refer to Figure 27.1 below, which is the same as Figure 27.10 in the textbook.
In this 8-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 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.

Figure 27.1
-Which term is least closely associated with the others?
A)Hfr cells making use of a sex pilus
B)rolling circle replication
C)the "toilet paper" model of replication
D)conjugation involving an F factor
E)recombination involving a bacteriophage

Question

The following questions refer to Figure 27.1 below, which is the same as Figure 27.10 in the textbook.
In this 8-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 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.
  
Figure 27.1
-Which term is least closely associated with the others?
A)Hfr cells making use of a sex pilus 
B)rolling circle replication 
C)the "toilet paper" model of replication 
D)conjugation involving an F factor 
E)recombination involving a bacteriophage

Quizplus · Accepted Answer

Recombination involving a bacteriophage is related to transduction, a different process of genetic exchange in bacteria, whereas the other terms are associated with bacterial conjugation and DNA replication.

The Following Questions Refer to Figure 27