The structure and shape of tRNA has to be described. Concept Introduction: Codon: A sequence of three ribonucleotides in the mRNA chain that codes for a specific amino acid; also a three- nucleotide sequence that is a stop codon and stops translation. Genetic code: The sequence of nucleotides, coded in triplets (codons) in mRNA that determines the sequence of amino acids in protein synthesis. Translation: A tRNA molecule is a single polynucleotide chain held together by regions of base pairing in a partially helical structure. An amino acid is bonded to its specific tRNA by an ester linkage. Connecting specific amino acid at end of the tRNA is known as charging tRNA. Once done, tRNA is ready to be used in the protein synthesis. At the other end of the tRNA, three anticodons are present which are complementary to the codons present in mRNA. Once the anticodons pairs off with codons, the amino acid at terminal end of the tRNA is delivered and attached to the growing protein chain.

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Chapter 26, Problem 26.68AP

Interpretation Introduction

Interpretation:

The structure and shape of tRNA has to be described.

Concept Introduction:

Codon: A sequence of three ribonucleotides in the mRNA chain that codes for a specific amino acid; also a three-nucleotide sequence that is a stop codon and stops translation.

Genetic code: The sequence of nucleotides, coded in triplets (codons) in mRNA that determines the sequence of amino acids in protein synthesis.

Translation: A tRNA molecule is a single polynucleotide chain held together by regions of base pairing in a partially helical structure. An amino acid is bonded to its specific tRNA by an ester linkage. Connecting specific amino acid at end of the tRNA is known as charging tRNA. Once done, tRNA is ready to be used in the protein synthesis.

At the other end of the tRNA, three anticodons are present which are complementary to the codons present in mRNA. Once the anticodons pairs off with codons, the amino acid at terminal end of the tRNA is delivered and attached to the growing protein chain.

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