Here are the essential concepts you must grasp in order to answer the question correctly.
Codons
Codons are sequences of three nucleotides in mRNA that correspond to specific amino acids during protein synthesis. Each codon specifies which amino acid will be added next in the growing polypeptide chain. The genetic code is universal, meaning that the same codons generally code for the same amino acids across different organisms.
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Amino Acids
Amino acids are organic compounds that serve as the building blocks of proteins. There are 20 standard amino acids, each with a unique side chain that determines its properties and role in protein structure and function. Histidine is one of these amino acids, known for its role in enzyme active sites and as a precursor for histamine.
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Histidine Codons
Histidine is encoded by three specific codons in the genetic code: CAU, CAC, and CAA. These codons are recognized by transfer RNA (tRNA) during translation, allowing the incorporation of histidine into proteins. Understanding these codons is essential for studying protein synthesis and genetic expression.
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