You need to decide whether to fight a small fire using a portable fire extinguisher. which situation indicates a small fire for which it may be appropriate to use a portable fire extinguisher? a. it is difficult to approach the fire because of the heat. b. smoke is accumulating on the ceiling, but visibility is good. c. special personal protective equipment is required.

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