A part of an mRNA molecule with the following sequence is being read by a ribosome:...

Transcribed Image Text:

A part of an mRNA molecule with the following sequence is being read by a ribosome: S'... AAA-CCG-ACG-TTT... 3' (mRNA). The following charged transfer RNA molecules (with their anticodons shown in the 3' to 5' direction and the amino acid they carry) are available. Two of them can correctly match the mRNA codons that are underlined so that a dipeptide can form. tRNA Anticodon GGC CGU UGC CCG ACG CGG Amino Acid Proline Alanine. Threonine Glycine Cysteine Alanine. (A) Write out the complete double-stranded DNA sequence of the portion of the gene above, labeling the 5' and 3' ends, and the template and non-template strands. (0.5 pts.). (B) What will be the dipeptide that will translated from the codons underlined in the mRNA sequence given? (0.5 pts.). (C) Draw the mRNA sequence as it is being translated by the ribosome as the second amino acid (from (B)) is being added. Be sure to include the appropriate tRNAs and label the anticodons, E site, A site, P site, small & large ribosomal subunit, direction of movement of the ribosome, formation of peptide bond: (0.5 pts.). A part of an mRNA molecule with the following sequence is being read by a ribosome: S'... AAA-CCG-ACG-TTT... 3' (mRNA). The following charged transfer RNA molecules (with their anticodons shown in the 3' to 5' direction and the amino acid they carry) are available. Two of them can correctly match the mRNA codons that are underlined so that a dipeptide can form. tRNA Anticodon GGC CGU UGC CCG ACG CGG Amino Acid Proline Alanine. Threonine Glycine Cysteine Alanine. (A) Write out the complete double-stranded DNA sequence of the portion of the gene above, labeling the 5' and 3' ends, and the template and non-template strands. (0.5 pts.). (B) What will be the dipeptide that will translated from the codons underlined in the mRNA sequence given? (0.5 pts.). (C) Draw the mRNA sequence as it is being translated by the ribosome as the second amino acid (from (B)) is being added. Be sure to include the appropriate tRNAs and label the anticodons, E site, A site, P site, small & large ribosomal subunit, direction of movement of the ribosome, formation of peptide bond: (0.5 pts.).