Which of the following best describes an example of how genetic codes of organisms have been used to hierarchically classify living things? 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 archaeabacteria look similar, differences in their ribosomal rna led to their classification into different domains.

The correct answer is- The common nucleic acid sequences of polar bears and black bears can be deduced from their classification in the same genus, Ursus.

Explanation:

Ursus is the genus which comes under the family Ursidae and includes a wide range of species of bears like brown bear, black bear, polar bear.  

There are seven-level of classification which is Kingdom, phylum, class, order, family, genus, and species. Two different species are put in the same genus when they have huge similarities in their DNA sequence.

So from moving species to kingdom similarities in DNA sequences decreases while moving from kingdom to species similarities increases. So we can deduce the difference in similarities between animals according to their classification.

Therefore the correct answer is-The common nucleic acid sequences of polar bears and black bears can be deduced from their classification in the same genus, Ursus.

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