Is compatable to defection or malfunction
        
             
        
        
        
Antibiotic used include kenamycin, ampicillin and tetracycline. This is useful to determine if and which bacteria took up the plasmid as they were supposed to during the process of recombination. Host bacteria are normally killed by these antibiotics. If the recombinant plasmids were taken up by the bacteria, plasmid may have contained a DNA gene for resisting the effects of one or more antibiotics. Host bacteria are placed in a growth medium containing an antibiotic to which they have a resistant gene in their recombinant plasmid DNA survivor. If they havent taken the plasmid they die.
        
             
        
        
        
The heart is an organ (rather than a tissue) because it has an important (and complex) function. Tissues don't have nearly as many things in it as the heart does. 
Hope this helps! :)
        
             
        
        
        
C. F1 generation is all Yy (let Y be yellow and y be green). Y is dominant to y. The F2 could be YY, Yy, Yy, or yy.        3:1