Which of the following best describes an example of how genetic codes of organisms have been used to help hierarchically classify living things? (2 points)
The common nucleic acid sequences of polar bears and black bears can be deduced from their classification in the same genus, Ursus.
Viruses contain DNA which is used to classify which hosts they will infect into a Linnaean taxonomy of viruses.
Since kangaroos and opossums both have developed pouches to carry their young, it proves that they share DNA sequences and belong to the same species.
Even though Eubacteria and Archaebacteria look similar, differences in their ribosomal RNA led to their classification into different domains.

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