Which statement does the nurse know is true regarding the effects of parathyroid hormone on bones for the maintenance of calcium balance?
1 increases bicarbonate and sodium excretion
2 enhances absorption of calcium and phosphorous
3 increases reabsorption of calcium and magnesium
4 increases net release of calcium into extracellular fluid

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