03.03 Protein Synthesis

A triplet of bases in a template strand of DNA is GAT. What would be the corresponding codon for mRNA? CTA CUA CTU CUU

b

Use the following table to answer the question: (I'm not drawing a whole table again, sorry) This table shows the codons found in messenger RNA. Using this information, what sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Phe-Ser-Gln? UUC-UCU-CAA AAG-AGA-GTT TTC-TCT-CAA AAG-AGA-GUU

b

Which of the following processes are involved in transcription? RNA polymerase binds to a DNA molecule A strand of DNA is used to assemble nucleotides into a complimentary strand DNA polymerase binds to a RNA molecule I only I and II only II only I, II, and III

b

Which type of RNA functions as the location where proteins are made? mRNA rRNA tRNA siRNA

b

A part of an mRNA molecule with the following sequence is being read by a ribosome: 5'-UGC-GCA-3' (mRNA). The charged transfer RNA molecules shown in the figure below (with their anticodons shown in the 3' to 5' direction) are available. Two of them can correctly match the mRNA so that a dipeptide can form: tRNA Anticodon |Amino Acid GGC | Proline CGU |Alanine UGC | Threonine CCG |Glycine ACG | Cysteine CGG | Alanine Which of the following dipeptides will be formed? Proline-Threonine Glycine-Cysteine Alanine-Alanine Cysteine-Alanine

d

If a tRNA molecule has an anticodon which reads AUGACA, what was the codon of the mRNA molecule? CGUCAC TACTGT TAGTGT UACUGU

d