Achild who lives down the street from you knows you are taking a class on physical fitness and has asked for some advice. he is only 11 years old now, but he wants to plan for a healthy future. his question to you is whether he should worry about his bone strength now or when he is in his 40s or 50s. what should you tell him?

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