Question

research scientists isolate proteins in a ph gradient. separation of protein a, protein b, and protein c in a ph gradient from sample 4 to sample 7, protein cs ph: a. increases only. b. increases and then stays the same. c. stays the same and then increases. d. stays the same only.

Explanation:

Step1: Locate Protein C on graph

Find Protein C (diamond - shaped markers).

Step2: Check pH for samples 4 - 7

For Sample 4 to 7, observe the pH - level values on the right - hand side of the graph corresponding to Protein C.

Step3: Analyze pH change

The pH values for Protein C from Sample 4 to 7 are all at 5.0.

Answer:

D. stays the same only.