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ASU BIO 181 Exam 2- Questions & Answers
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ASU BIO 181 Exam 2- Questions & Answers
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ASU BIO 181 Exam 2- Questions &Answers
Which enzyme unwraps the double helix? Correct Ans-Helicase
Which enzyme is used first to permit DNA polymerase III to begin replicating the 3'
strand? Correct Ans-Primase
The double helix of DNA is wrapped about 1¾ times around which of these
components? Correct Ans-Nucleosome
During DNA replication in the lagging strand there is production of this component? Correct
Ans-Okazaki fragment
For DNA Polymerase III to work, which of these components has to act first? Correct Ans-
Primase
T/F DNA mutation is greatly reduced by enzymes that proof read the newly replicated
DNA. Correct Ans-True
, Which strand is produced more rapidly? Correct Ans-Leading Strand
T/F Strands of the backbone of DNA are parallel. Correct Ans-False
T/F Uridine is a nucleotide in DNA. Correct Ans-False
T/F Replication of DNA is semi-conservative. Correct Ans-True
T/F The DNA polymerase that replicates the parental strand of DNA reads the parental DNA
from 5' to 3" and makes a new DNA strand from 3' to 5'. Correct Ans-False
T/F DNA replication in eukaryotes is sped up by multiple origins of replication. Correct Ans-
True
T/F Messenger RNA is double stranded. Correct Ans-False
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