Answer;
Explanation:
Here, we want to select the option that is not true from the given set of options
We take a look at each of the statements as follows:
a) This is true.
The alpha helix is a spiral arrangement in which the amino acid chains are arranged. It is also associated with secondary structure
b) This is false
Since a protein can be a single unit. This means that not all are associated with a quarternary level
c) This is ture
d) This is true