The answer is a<span>ctivation because during this amino acid is activated by aminoacyl-trna synthetase enzyme and added to trna</span>
        
             
        
        
        
Scientists prove their hypothesis is true about Scientists can never "prove" their hypotheses are true, because some future experiment, possibly using new technology not currently available, might show the hypothesis to be false after all.
        
             
        
        
        
It will can cause infertile offspring (the offspring can't have kids)