D. Flagella
Flagella helps the cell stick to a surface.
I hope this helps! Good luck.
Answer:
mainly look at the eletrons because they will be different if one is transmitted and one is reflected.
Explanation:
ok well first it does two things it changes its shape (denature) and it slows down so its either b or d
Answer:
The membrane is selectively permeable because substances do not cross it indiscriminately.
Explanation:
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.
