Contrast the enzyme(s) present in the virions of a retrovirus and a positive-strand RNA bacteriophage. Why do they differ if each has plus configuration single-stranded RNA as its genome?
Answer to relevant QuestionsIf the MS2 or poliovirus virions did not contain a specific enzyme, explain why these viruses could not replicate. What are the similarities and differences between viruses and viroids? Why can it be said that transcription of the bacteriophage T7 genome requires two enzymes? Write a one-sentence definition of the term "genotype." Do the same for "phenotype." Does the phenotype of an organism automatically change when a change in genotype occurs? Why or why not? Can phenotype change without a ...Explain why recipient cells do not successfully take up plasmids during natural transformation.
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