Not sure about 2 or 3 but I believe that for number 1 is B or claim 2!!
They flow and can take the shape of their container
The answer is (3) Mg because Ca and Mg are in the same group (group 2).
Hope this helps~
Casts! Molds! Trace Fossils as well
Answer:
The A option is the correct answer: Non-native disulfide bonds form after beta-mercaptoethanol is removed, so the protein cannot refold correctly
Explanation:
Beta-Mercaptoehanol is responsible to reduce the four disulfide bonds present in ARNase; Urea deals with non covalente bonds. In presence of both ARNase is denatured.
If Urea is first removed by dialysis, and later is removed Beta-Mercaptoethanol, the enzyme recovers ist activity.
If Beta-Mercaptoethanol is first removed, disulfide bonds different from native use to be formed. As a result ARNase is not an active enzyme
