Multiple choice

Which of the following sets represents sulphur containing amino acids only?

  1. Cystine and Threonine

  2. Cysteine and Methionine

  3. Methionine and Lysine

  4. Lysine and threonine

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cysteine (Chemical formula HO2CCH(NH2)CH2SH): Sulphur containing amino acid Methionine (Chemical formula HO2CCH(NH2)CH2CH2SCH3): Sulphur containing amino acid