[Campbell Biology P.501] According to the text, what percentage of the human genome is accou... | Practice Question

According to the text, what percentage of the human genome is accounted for by DNA sequences that actually code for proteins or give rise to tRNA or rRNA?

  • A: Approximately 1.5%
  • B: Approximately 6%
  • C: Approximately 10%
  • D: Approximately 25%

Explanation

The text explicitly states in the "Genes and Multigene Families" section that "DNA sequences that code for proteins or give rise to tRNA or rRNA make up only 1.5% of the human genome". The other percentages 6%, 10%, 25% refer to different aspects of genome composition as detailed in their respective feedback.