The second objective of epidemiology is to determine the extent of disease in the community. examples of this would include: i. determining that smoking is associated with 80% to 90% of lung cancer cases. ii. determining that most people with amyotrophic lateral sclerosis live 2-5 years after their first signs of disease. iii. determining that more than one-third (36.5%) of u. s. adults have obesity

Some viruses can be crystallized and their structures analyzed. one such virus is yellow mottle virus, which infects beans. this virus has a single-stranded rna genome containing about 6300 nucleotides. its capsid is 25-30 nm in diameter and contains 180 identical capsomeres.if the yellow mottle virus begins its infection of a cell by using its genome as mrna, which of the following would you expect to be able to measure? a) replication rateb) transcription ratec) translation rated) formation of new transcription factors