What Probably Accounts for the Switch to DNA-Based Genetic Systems

question 37

Multiple Choice

What probably accounts for the switch to DNA-based genetic systems during the evolution of life on Earth?

• A)DNA is chemically more stable and replicates with fewer errors (mutations)than RNA.
• B)Only DNA can replicate during cell division.
• C)RNA is too involved with translation of proteins and cannot provide multiple functions.
• D)DNA forms the rod-shaped chromosomes necessary for cell division.
• E)Replication of RNA occurs too slowly.

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