Question 1
The extraordinary accuracy of the DNA polymerase III enzyme lies in its ability to "proofread" newly synthesized DNA, a function of the enzyme's ________.
◦ 3′-to-5′ exonuclease activity
◦ 5′-to-3′ exonuclease activity
◦ 3′-to-5′ polymerase activity
◦ 5′-to-3′ polymerase activity
◦ 3′-to-5′ helicase activity
Question 2
The following represents a DNA strand in the process of replication. The bottom sequence is that of the DNA strand with polarity indicated and the top sequence represents the RNA primer.
GGGGCCUUU
5′ AAATCCCCGGAAACTAAAC 3′
Which of the following will be the first DNA nucleotide added to the primer?
◦ A
◦ G
◦ C
◦ T
◦ U