Chapter 6, Problem 28P

A DNA synthesizer is a machine that uses automated chemical synthesis to generate short, single strands of DNA of any given sequence. You have used the machine to synthesize the following three DNA molecules:

(DNA 1)	5′ CTACTACGGATCGGG 3′
(DNA 2)	5′ CCAGTCCCGATCCGT 3′
(DNA 3)	5′ AGTAGCCAGTGGGGAAAAACCCCACTGG 3

Now you add the DNA molecules either singly or in combination to reaction tubes containing DNA polymerase, dATP, dCTP, dGTP, and dTTP in a buffered solution that allows DNA polymerase to function. For each of the reaction tubes, indicate whether DNA polymerase will synthesize any new DNA molecules, and if so, write the sequence(s) of any such DNAs.

a.	DNA 1 plus DNA 3
b.	DNA 2 plus DNA 3
c.	DNA 1 plus DNA 2
d.	DNA 3 only