Organism B E Characteristic Rod Rod Coccus Coccus Rod Morphology Yes Motile Gram

Question

Organism B E Characteristic Rod Rod Coccus Coccus Rod Morphology Yes Motile Gram Reaction Ferm Ferm. None Gllucose Utilization Oxid Ferm 47-52 58-70 50-51 30-40 58-70 G C Cytochrome oxidase Present Absent Absent Present Present Use the information given in Table 10.3 to answer the following questions. Which organisms ar most closely related On what did you base your answer? DNA from which organisms will probably hybridize? Section: 10.3 Bloom's Taxonomy: Evaluation ASM cue Outcome: 7.3a Learning Outcome: 10.14 Global Outcome: 3

Explanation / Answer

Please find the answers below:

Part 1: According to the tabulated data in the question, it can be seen that the G+C content is most strikingly similar for organisms A and E.

Part 2: It should also be carefully noted from the data that both of these organisms carry cytochrome c oxidase enzyme. Further, the morphological shape and motile behaviour of these organisms validate their most similarity. Thus, these morphological, enzymatic and molecular features validate that the organisms A and E are most similar.

Part 3: From the tabulated data, it can be seen that organisms A and E are most similar and seem evolutionarily related. Further, the fact that they have similar G+C content verifies that their DNAs are most likely to get hybridize.

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