Section 26.5 Pre-lecture Quiz

7 Questions

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Section 26.5 Pre-lecture Quiz

Just a little pre-lecture quiz to check your understanding of this short section.


Questions and Answers
  • 1. 
    Horizontal gene transfer is...
    • A. 

      The transfer of genes from parent to offspring.

    • B. 

      Any process in which an organism incorporates genetic material from another organism without being its offspring.

    • C. 

      The process in which two cells transfer genes in the form of plasmids at an angle.

    • D. 

      A process exclusive to bacteria.

  • 2. 
    Horizontal gene transfer can only occur in prokaryotes. 
    • A. 

      True

    • B. 

      False

  • 3. 
    In which of the following organisms could horizontal gene transfer be an important way to foster evolutionary change? Choose all that apply.
    • A. 

      Plants

    • B. 

      Archaea

    • C. 

      Eukarya

    • D. 

      Animals

    • E. 

      Bacteria

  • 4. 
    Research indicates that horizontal gene transfer is less prevalent in eurkaryotic cells because of
    • A. 

      The presence of membrane-bound organelles

    • B. 

      Sexual reproduction

    • C. 

      Multicellularity

    • D. 

      B and C

    • E. 

      All of the above

  • 5. 
    Horizontal gene transfer complicates the concept of monophylogenetic groups. This is because
    • A. 

      The book shows a tree of life with lines connecting some branches according to HGT, so it isn't a tree anymore.

    • B. 

      Not all genes from a species are inherited from a single ancestor under HGT.

    • C. 

      Genes coding for mitochondria and chloroplasts in eukaryotic cells originated from HGT, showing that cyanobacteria and eukaryotes are related.

    • D. 

      HGT involves a group of cells transferring genes to one another through a sex pilus.

  • 6. 
    Vertical gene transfer is...
    • A. 

      The transfer of genes from parent to offspring.

    • B. 

      The transfer of genes from offspring to parents.

    • C. 

      The transfer of genetic modifications from one organism to another.

    • D. 

      The transfer of genes from one organism to another.

  • 7. 
    Vertical evolution involves...
    • A. 

      Change in groups of species due to descent from a common ancestor.

    • B. 

      A vertical plane.

    • C. 

      Evolution of a species

    • D. 

      Changes in groups of species due to descent from a common ancestor.