The necessary ingredients for dna synthesis can be mixed together in a test tube. the dna polymerase is from thermus aquatics and the template dna is from e. coli. the dna synthesized would be the most similar to a) e. coli dna; b) t. aquatics dna; c) a mixture of e. coli and t. aquatics dna; d) neither; e) e. coli rna

a) E.coli DNA

Explanation:

Deoxyribonucleoside (DNA) is the molecule that contains information in the form of nucleotide codes. These codes are arranged in a specific manner and vary from one member to others even in a single species. This Sequence defines the resemblance of the next generation.

Taq Polymerase is the enzyme which is taken from Thermus aquaticus bacteria and only responsible for polymerization of nucleotide sequence taken from the template strand.  

Best Choice:  

As template strand is taken from E.coli hence the newly synthesized DNA would be the most similar to E.coli.