Exam 1 Questions and
Answers Portage Learning
GRADED A +
, RA class of DNA polymerase patrols newly added
nucleotides and will remove nucleotides that are erroneous.
How does the polymerase "know" a nucleotide is misplaced.
- CORRECT ANSWER-Newly adde nucleotides are compared
to the complimentary template strand.
Replication of DNA begins at a single origin of replication
and then proceeds the entire length of the strand, in one
direction (T/F) - CORRECT ANSWER-False
What enzyme is responsible for relieving the stress
associated with the twisting and untwisting of a DNA strand
during replication. - CORRECT ANSWER-Topoisomerase
As a replicated DNA strand elongates, what enzyme is
responsible for adding nucleotides? - CORRECT ANSWER-
DNA polymerase
The energy required to add a nucleotide to a growing chain is
supplied by an exergonic reaction involving the hydrolysis of
the nucleotide's pyrophosphate tail (T/F) - CORRECT
ANSWER-True