Given the two half-reactions. what must be done in the next step before the reaction can be balanced?
au → au
show the number of electrons being lost or gained
make sure that the charges are balanced
list the atoms that need to be balanced

Which of these is not an example of molecular homology? 1. use of dna and rna as genetic material 2.use of glycolysis as the first step in cellular respiration in both plants and animals 3. the lack of an igf-1 gene in prokaryotes 4. the use of aldolase b to break down fructose in bacteria, plants and animals