The function of the beta subunit is to prevent dna polymerase iii from dissociating from the template dna strand while still allowing the polymerase to slide along dna as replication progresses. given this function, the alpha helices in the beta subunit

The alpha helices in the beta subunit are a ring shaped protein.

Explanation:

Because the beta encircles DNA like a ring used gel filtration and radioactive beta subunit. Tipically beta and gamma complex are needed for fast and processive synthesis by polymerase III core. Some researchers  realized that adding polymerase III  core to the gel filtered isolated ³H-beta- DNA provide fast DNA synthesis typical of the polymerase III holoenzyme. Therefore the gamma complex is only needed to get the beta subunit onto the DNA, and is not required afterward.

examples of nucleic acids are deoxyribonucleic acid (dna) and ribonucleic acid (rna).