Feedback for Multiple Choice Quiz 36 #2
- DnaA does the actual opening, but HU, a small basic protein, is required to complex the DNA.
- The b subunit is the large ring-shaped protein ("sliding clamp" in Figs. 10.7 and 10.10 of Campbell). Can you name the proteins that perform the other four functions in this question?
- All four of the incorrect answers are major contributors to replication fidelity.
- Drug resistance is caused by mutation. Without a proofreading exonuclease, the HIV-1 reverse transcriptase is highly mutagenic.
- When a dU nucleotide is present in DNA, it is removed by an enzyme that hydolyzes the glycosidc bond, thereby releasing the uracil base.
All of the correct answers have a green check mark.
Incorrect answers have the "red-lit" button next to your choice.