Which of the Following Is the Best Evidence for a Three-Domain

question 54

Multiple Choice

Which of the following is the best evidence for a three-domain system?

• A)Nucleotide sequences in ribosomal RNA vary between all three domains.
• B)There are three distinctly different sets of metabolic reactions.
• C)There are three distinctly different Gram reactions.
• D)Some bacteria live in extreme environments.
• E)There are three distinctly different types of nuclei.

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