BiologyGenetics

Mastering Biology Chapter 1 Answer Key: Why Is the Genetic Code Nearly Universal?

The shared genetic code is best explained by common ancestry. Its near-universality preserves a deep evolutionary signal while allowing for a small number of known exceptions.

Question

The universal genetic language of DNA is common to virtually all organisms on Earth, however diverse. What is the best explanation for this fact?- All living things share a common genetic language of DNA because they share a common ancestry.- The universal nature of the genetic language of DNA is due to coincidence.- The universal genetic language is explained by the chemistry of DNA and proteins.

This question has been answered.

Explore the full answer and supporting references to better understand this question.

Verla BasicBest value

$19.99/month

  • Everything in Study Pass
  • Assignments with writing output
  • AI detection and humanizer
  • Basic quotas across every tool
Study Pass

$0.99/month

  • Entire question library
  • Knowledge guides and sources
  • Detailed answers and explanations
  • No AI tools or quotas

Evidence boundary

This answer evaluates the three choices in the cited question version. It explains why the near-universality of the standard genetic code supports common ancestry, but it does not treat that evidence as a stand-alone proof of every evolutionary detail or claim that the code has no exceptions.