An investigator was interested in studying uag nonsense suppressor mutations in bacteria. in one species of bacteria, she was able to select two different mutants of this type, one in the trnatyrgene and the other in the trnagln gene, but in a second species, she was not able to obtain any such nonsense suppressor mutations, even after very extensive effort. what could explain the difference between the two species?

wheres the answers ?

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products