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ASU BIO 181: EXAM 2 2026 WITH
QUESTIONS AND ANSWERS
Which strand is produced more rapidly? - correct answer-Leading strand
During DNA replication in the lagging strand there is production of this
component? - correct answer-Okazaki fragment
How many "stop" codons exist? - correct answer-3
The double helix of DNA is wrapped about 1¾ times around which of these
components? - correct answer-Nucleosome
Which enzyme unwraps the double helix? - correct answer-Helicase
In the ribosome, what is the name of the bond that links one amino acid to
the next? - correct answer-peptide bonds
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List the two basic categories of nitrogenous bases in nucleic acids. - correct
answer-purine and pyrimidine
In DNA, what does the nucleotide labeled as A pair with? - correct answer-
Thymine
During DNA replication is greatly reduced by enzymes that proof read the
newly replicated DNA. - correct answer-True
How many hydrogen bonds are there between an A and its paired
nucleotide? - correct answer-2
During mRNA maturation what is the name of the part of the mRNA that is
removed? - correct answer-introns
DNA replication in eukaryotes is sped up by multiple origins of replication. -
correct answer-true
RNA synthesis, also called RNA transcription occurs in three phases. List
them from beginning to end in order. - correct answer-initiation, elongation,
termination
ASU BIO 181: EXAM 2 2026 WITH
QUESTIONS AND ANSWERS
Which strand is produced more rapidly? - correct answer-Leading strand
During DNA replication in the lagging strand there is production of this
component? - correct answer-Okazaki fragment
How many "stop" codons exist? - correct answer-3
The double helix of DNA is wrapped about 1¾ times around which of these
components? - correct answer-Nucleosome
Which enzyme unwraps the double helix? - correct answer-Helicase
In the ribosome, what is the name of the bond that links one amino acid to
the next? - correct answer-peptide bonds
, 2 |Page
List the two basic categories of nitrogenous bases in nucleic acids. - correct
answer-purine and pyrimidine
In DNA, what does the nucleotide labeled as A pair with? - correct answer-
Thymine
During DNA replication is greatly reduced by enzymes that proof read the
newly replicated DNA. - correct answer-True
How many hydrogen bonds are there between an A and its paired
nucleotide? - correct answer-2
During mRNA maturation what is the name of the part of the mRNA that is
removed? - correct answer-introns
DNA replication in eukaryotes is sped up by multiple origins of replication. -
correct answer-true
RNA synthesis, also called RNA transcription occurs in three phases. List
them from beginning to end in order. - correct answer-initiation, elongation,
termination
