In the experiments conducted by Oswald Avery, Colin MacLeod, and Maclyn McCarty, which enzyme inhibited the transformation of R strain into S strain, suggesting that DNA is the hereditary material?

Deoxyribonuclease (DNase) is a glycoprotein endonuclease enzyme group responsible for catalysing the hydrolysis of phosphodiester linkages within the DNA backbone, leading to the degradation of DNA. Hence, DNase inhibits the transformation of R strain into S strain.