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ASU BIO 181 Module 7- Questions & Answers
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ASU BIO 181 Module 7- Questions & Answers
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ASU BIO 181 Module 7- Questions &Answers
Which enzyme is used first to permit DNA polymerase III to begin replicating the 3'
strand? Correct Ans-Primase
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
How many "stop" codons exist? Correct Ans-Three
1. UAA (Uracil Adenine Adenine)
2. UAG (Uracil Adenine Guanine)
3. UGA (Uracil Guanine Adenine)
List the two basic categories of nitrogenous bases in nucleic acids. Correct Ans-Purines and
Pyrimidines
, In eukaryotic cells the start codon for protein synthesis is ___ Correct Ans-AUG or
Methionine
T/F:
DNA replication in eukaryotes is sped up by multiple origins of replication. Correct Ans-True
Assume that you have a eukaryotic cell with three chromosomes within it. How many 5' ends
would there be? Correct Ans-Gap1: 6, Gap2: 12
The double helix of DNA is wrapped about 1¾ times around which of these
components? Correct Ans-Nucleosome
In the ribosome, what is the name of the bond that links one amino acid to the next? Correct
Ans-Peptide Bond
Which sugar is present in RNA? Correct Ans-Ribose
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