After reading the paragraph below, answer the questions that follow.
You're the manager of a factory that produces enzyme-washed blue jeans (the enzymes lighten the color of the denim, giving a "faded" appearance). When the most recent batch of fabric came out of the enzyme wash, however, the color wasn't light enough to meet your standards. Your quality control laboratory wants to do some tests to determine why the wash enzymes didn't perform as expected.
If you could design a modified version of the enzyme to ensure that it would function optimally in the harsh conditions of the washing vat (such as high temperature or high pH), which of the following could you do to achieve this goal?
◦ Change the amino acid sequence drastically to give the enzyme quaternary structure.
◦ Change the amino acid sequence slightly to ensure a more stable tertiary structure.
◦ Remove some amino acids from the start of the protein to strengthen its secondary structure.
◦ Add more amino acids to the end of the protein to make it more hydrophobic.