Perspectives on the Phylogenetic Tree

Review Questions

The transfer of genes by a mechanism not involving asexual reproduction is called:

  1. meiosis
  2. web of life
  3. horizontal gene transfer
  4. gene fusion

Hint:

C

Particles that transfer genetic material from one species to another, especially in marine prokaryotes:

  1. horizontal gene transfer
  2. lateral gene transfer
  3. genome fusion device
  4. gene transfer agents

Hint:

D

What does the trunk of the classic phylogenetic tree represent?

  1. single common ancestor
  2. pool of ancestral organisms
  3. new species
  4. old species

Hint:

A

Which phylogenetic model proposes that all three domains of life evolved from a pool of primitive prokaryotes?

  1. tree of life
  2. web of life
  3. ring of life
  4. network model

Hint:

C