The wobble rules for tRNA-mRNA pairing are shown in this quiz. If we assume that the tRNAs do not contain modified bases, what is the minimum number of tRNAs that are needed to recognize all of the proline codons?

A codon that specifies an amino acid near the amino terminus of a polypeptide would be

With regard to lac operon regulation via catabolite activator protein (CAP), which of the following statements is incorrect?

A codon is 5’-GGU-3’.  An anticodon that would recognize this codon would be

A tRNA has an anticodon that is 3′-CCU-5′. Which amino acid would it carry?

If a mutant sigma factor binds very tightly to RNA polymerase, how might that affect transcription?

For the following sequences, what is the consensus sequence?             5’-GGATAGGA-3’             5’-GCTTCAGA-3’             5’-GCATAGGG-3’             5’-GGATCGAG-3’             5’-GGTTCGGG-3’

With regard to lac operon regulation via catabolite activator protein (CAP), which of the following statements is correct?

Which of the following does not happen for the glucocorticoid receptor to activate a gene?

A gene that encodes a tRNA changes the anticodon from 3′-GAG-5′ to 3′-CAG-5′. This mutation does not alter which amino acid that is attached to the mutant tRNA. What effect would this mutation have on translation?