Answer:
They used radioactive labeling techniques to build two different types of phage.
Explanation:
In 1952, a set of experiments were carried out by American biochemists Alfred D. Hershey (1908-1997) and Martha Chase. They prepared two separate virus samples, one contained DNA labeled with a radioactive isotope and the other contained protein labeled with a different radioactive isotope. They grew the two types of viruses separately, infected bacteria with the two sets of phages and analyzed the bacteria for radioactivity. From the results obtained, Hershey and Chase concluded that the viral genetic material was DNA and not protein, reinforcing the observations previously made by Avery.
The transition directly from a solid to a gas
Answer:
specific heat
Explanation:
Can I be brainliest? TYSMMMMMMMMM
Detrital<span> or clastic </span>sedimentary rocks<span> are composed of</span>rock<span> fragments. They are different than </span>chemical sedimentary rocks<span>, which are composed of mineral crystals. Learn how these </span>sedimentary rocks<span> differ in their formation and composition.</span>
1) pathogen
2) viruses
Some bacteria are not harmful to your body hence not all of them are pathogens
