Concept explainers
Interpretation:
One way to differentiate among the tRNA for each amino acid 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-
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.
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- A normal hemoglobin protein has a glutamic acid at position 6; in sickle-cell hemoglobin, this glutamic acid has been replaced by a valine. List all the possible mRNA codons that could be present for each type of hemoglobin. Can a single base change result in a change from Glu to Val in hemoglobin?arrow_forwardThree E. coli tRNA molecules with the anticodon sequences CGG, OGG , and UGG are charged with the same amino acid. What is the amino acid ?arrow_forwardWhat are the sequences of all the possible tripeptides that contain the amino acids aspartic acid, leucine, and phenylalanine? Use the threeletter abbreviations to express your answer.arrow_forward
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