BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Hershey and Chase found that when bacteriophages containing 32P (radioactive), were allowed to infect nonradioactive bacteria, all the infected cells became radioactive and, in fact, much of the radioactivity was passed on to the next generation of bacteriophages.

Detailed explanation-2: -Hershey and Chase concluded that protein was not genetic material, and that DNA was genetic material. Unlike Avery’s experiments on bacterial transformations, the Hershey-Chase experiments were more widely and immediately accepted among scientists.

Detailed explanation-3: -In 1952, Alfred Hershey and Martha Chase took an effort to find the genetic material in organisms. Their experiments led to an unequivocal proof to DNA as genetic material. Bacteriophages (viruses that affect bacteria) were the key element for Hershey and Chase experiment.

Detailed explanation-4: -Hershey and Chase needed to study the subsections of phage and thus decided to uniquely label the parts with different isotopes. Radioactive phosphorous-32 was used to label the DNA content whereas radioactive sulfur-35 was used to label the protein parts.