What does the British term knackered mean?

What does the British term knackered mean? tired, exhausted Definition of knackered British. : tired, exhausted. Synonyms & Antonyms Don’t Get Tired Defining Knackered Example Sentences Learn More About knackered. Why do Brits say innit? “Innit” is an abbreviation of “isn’t it” most commonly used amongst teenagers and young people. This phrase is used to […]

Why is cysteine a special amino acid?

Why is cysteine a special amino acid? Cysteine is unique among coded amino acids because it contains a reactive sulph-hydryl group. Therefore, two cysteine residues may form a cystine (disulfide link) between various parts of the same protein or between two separate polypeptide chains. Is cysteine an essential amino acid? Although cysteine is not considered […]

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