**Codons and the Amino Acids They Encode:**- **AUG** = Met- **UUU, UUC** = Phe- **UUA, UUG** = Leu- **UCU, UCC** = Ser- **CCU, CCC** = Pro- **ACU, ACC** = ThrThe mRNA transcript: **5' - ACU-UUC-ACU-AUG-UUU-UUA-UCC-UCC-ACU-CCU-UGA - 3'** results in a polypeptide.**Questions:**(a) **Amino Acid Sequence**: Identify the sequence of amino acids in the polypeptide's primary structure. (3 marks)(b) **Nucleotide Sequence**: Provide the nucleotide sequence corresponding to this mRNA transcript in: (i) **DNA Template Strand**: The DNA strand that was read to produce the mRNA. (5 marks) (ii) **DNA Coding Strand**: The DNA strand that was NOT read (the coding strand). (5 marks)(c) **Aminoacyl-tRNA Synthetases**: How many distinct aminoacyl-tRNA synthetases are required for this polypeptide's synthesis? (1 mark)(d) **Genetic Code Characteristics**: Name two characteristics of the genetic code evident from the data given. (2 marks)

Name: **Codons and the Amino Acids They Encode:**- **AUG** = Met- **UUU, UU
Uploaded: 2024-03-20T06:42:41.000Z
Channel: Bartleby
Description: **Codons and the Amino Acids They Encode:**- **AUG** = Met- **UUU, UUC** = Phe- **UUA, UUG** = Leu- **UCU, UCC** = Ser- **CCU, CCC** = Pro- **ACU, ACC** = ThrThe mRNA transcript: **5' - ACU-UUC-ACU-AUG-UUU-UUA-UCC-UCC-ACU-CCU-UGA - 3'** results in a

ANSWER;- a) The sequence of amino acids in the following structure Met-Phe-Leu-Ser-Thr-Pro b)(i) DNA Strand 5'- ACU-UUC-ACU-UUU-UUA-UCC-UCC-ACU-CCU-UGA-3' DNA 5' -TGA-AAG-TGA-TAC-AAA-AAT-AGG-AGG-TGA-GGA-ACT-3' ii) DNA strand that was not read 5'-ACT-TTG-ACT-ATG-TTT-TTA-TCC-TCC-ACT-CCT-TGA-3' c) Seven distinct aminoacyl-tRNA synthetases- - For each genetic code of mRNA from the start codon, one aminoacyl-tRNA synthetase is used.d) The two characteristics; (i) Triplet nature: codon consists of a triplet of nucleotide bases. (ii) Degeneracy: Same amino acids are coded by more than one triplet base.