Q97 / 200 · MHT CET - Medical 2026 (25 April Shift 2) · Biology
A basic protein contains more basic amino acids such as ______.
- ALysine and methionine
- BMethionine and arginine
- Correct answerCArginine and lysine
- DValine and lysine
Solution
Basic proteins are rich in basic amino acids, which have positively charged side chains at physiological pH.
The standard basic amino acids are arginine, lysine, and histidine.
Among the given options, arginine and lysine are both basic amino acids. Methionine and valine are neutral, non-polar amino acids.
Histones are a well-known example of basic proteins, which are rich in arginine and lysine residues.
Answer: Arginine and lysine
The standard basic amino acids are arginine, lysine, and histidine.
Among the given options, arginine and lysine are both basic amino acids. Methionine and valine are neutral, non-polar amino acids.
Histones are a well-known example of basic proteins, which are rich in arginine and lysine residues.
Answer: Arginine and lysine
Hence, the correct answer is option: 'C'.