Which of the following is a basic amino acid?
1. Alanine
2. Tyrosine
3. Lysine
4. Serine
The non-essential amino acid among the following is:
1. Lysine
2. Valine
3. Leucine
4. Alanine
Which structure(s) of proteins remains(s) intact during denaturation process?
1. Both secondary and tertiary structures
2. Primary structure only
3. Secondary structure only
4. Tertiary structure only