Which of the following does not occur in this virus life cycle
a) the virus inserts its dna into the cell
b) the viral dna inserts itself into the hosts dna
c) new viruses are synthesized

The influenza virus cause the flu, but not other diseases. why?

What are genotypes? what are phenotypes?

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.