Deschenes Questions: 42-45 A prokaryotic mRNA transcribed fr…

Deschenes Questions: 42-45 A prokaryotic mRNA transcribed from the E. coli araB gene has the sequence: 5’- UUUGGAUGGAGUGAAACGAUGGCGAUUGCA-3’ Two potential initiator AUG sequences are indicated in bold font.  How does the incoming ribosome and initiator tRNA-MET know where to start translating (1 pts)?

ATTEMPT ANY TWO (If you answer all three, Dr. Davé will revi…

ATTEMPT ANY TWO (If you answer all three, Dr. Davé will review them all and select the best two for a maximum of 6 points.) a.) The clamp loader becomes dysfunctional due to a mutation. Explain (in mechanistic terms) what step of DNA replication will be affected, and why? (3 pts) OR b.) Explain at least three functions of the Linker Histone H1. (3 pts) OR c.) Explain the mechanism by which DNA-Topoisomerase I relaxes overwound DNA. (3 pts)