Codon usage and even the genetic code itself varies from one organism to the next. (True or false?)

Codon usage and even the genetic code itself varies from one organism to the next.
 
  Indicate whether the statement is true or false.

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Genes for DNA replication and transcription make up only a small fraction of the typical prokaryotic genome.
 
  Indicate whether the statement is true or false.

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The largest cellular genomes belong to prokaryotes that are parasitic or pathogenic.
 
  Indicate whether the statement is true or false.

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The key characteristic of third-generation sequencing is the ability to sequence single molecules of DNA.
 
  Indicate whether the statement is true or false.

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Heterotrophs need only a few more genes than autotrophs.
 
  Indicate whether the statement is true or false.