Evolution of Microbes: Adaptation and Diversity

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Questions and Answers

What is the underlying mechanism that explains adaptation in biology?

  • Horizontal gene transfer
  • Clonal reproduction
  • Microbial evolution
  • Natural selection (correct)

What is the primary function of flagella in Pseudomonas?

  • To act as a 'swimming tail' (correct)
  • To provide structural support
  • To regulate gene expression
  • To facilitate nutrient uptake

What is the result of deleting the fleQ gene in Pseudomonas?

  • Unusual pattern of motility (correct)
  • Enhanced motility
  • No effect on motility
  • Complete loss of motility

What is the characteristic of microbial evolution that allows it to be observed in experiments?

<p>It is a rapid process (C)</p> Signup and view all the answers

What is the term used to describe the origin of sex in the context of gene swapping?

<p>Contagion theory (D)</p> Signup and view all the answers

What is the process by which microbes adapt to their environment at a faster rate?

<p>Horizontal gene transfer (B)</p> Signup and view all the answers

What is the result of transposon mutagenesis in Pseudomonas?

<p>Gain of new phenotypes (D)</p> Signup and view all the answers

What is the characteristic of microbes that allows them to show an astounding range of adaptations?

<p>They are highly diverse (B)</p> Signup and view all the answers

What is the process by which new mutations in different individuals can combine to generate diversity?

<p>Recombination (C)</p> Signup and view all the answers

What is the term used to describe the evolution of antibiotic resistance in microbes?

<p>Rapid evolution (D)</p> Signup and view all the answers

What is the primary mechanism that generates diversity in microbes?

<p>Horizontal gene transfer (C)</p> Signup and view all the answers

Why do microbes adapt faster than other organisms?

<p>Because they have a larger population size (D)</p> Signup and view all the answers

What is the function of flagella in Pseudomonas?

<p>To swim through their environment (A)</p> Signup and view all the answers

What is the advantage of microbial evolution being fast?

<p>It allows them to be observed in experiments (D)</p> Signup and view all the answers

What is the role of plasmids in microbial evolution?

<p>They act as a mechanism for horizontal gene transfer (D)</p> Signup and view all the answers

What is the significance of the 'contagion theory'?

<p>It explains the origin of sex (A)</p> Signup and view all the answers

What is the result of deleting the Delta fleQ gene in Pseudomonas?

<p>Unusual patterns of motility (A)</p> Signup and view all the answers

What is the primary mechanism of adaptation in microbes?

<p>Natural selection (B)</p> Signup and view all the answers

What is the advantage of horizontal gene transfer in microbes?

<p>It allows for the exchange of genes between different species (A)</p> Signup and view all the answers

What is the significance of microbial evolution being rapid?

<p>It allows for the adaptation to changing environments (D)</p> Signup and view all the answers

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