dna-abc5

$e-MATH$
The ABC of DNA Computing

5. Using complementarity to link connecting flights.

In the experiment, strands representing the flights are mixed in a test-tube with the complements to the strands representing the airports. If we let Atlanta* represent the complementary strand, etc., this gives

Atlanta

Atlanta*

Dallas

Dallas*

Chicago

Chicago*

The test-tube then holds

`Atlanta*`	`Atl->Dal`
`Dallas*`	`Atl->Chi`
`Chicago*`	`Dal->Chi`
`etc.`	`Chi->Dal`
	`etc.`

When the contents are mixed, complementary sections of strand will bond, yielding products of reaction like:


              Atl->Dal 
            

     Atlanta*


              Atl->Chi
            

     Atlanta*


              Dal->Chi
            

     Dallas*

and



              Atl->Dal 
            

    Atlanta*           Dallas*


     Atl->Dal         Dal->Chi

            
               Dallas*

and


               Atl->Dal        Dal->Chi
            

     Atlanta*          Dallas*        Chicago*