ASU BIO 181 TEST SCRIPT WITH
VERIFIED SOLUTIONS
◉ During DNA replication in the lagging strand there is production of
this component? Answer: Okazaki fragment
◉ How many "stop" codons exist? Answer: 3
◉ The double helix of DNA is wrapped about 1¾ times around which of
these components? Answer: Nucleosome
◉ Which enzyme unwraps the double helix? Answer: Helicase
◉ In the ribosome, what is the name of the bond that links one amino
acid to the next? Answer: peptide bonds
◉ List the two basic categories of nitrogenous bases in nucleic acids.
Answer: purine and pyrimidine
◉ In DNA, what does the nucleotide labeled as A pair with? Answer:
Thymine
, ◉ During DNA replication is greatly reduced by enzymes that proof
read the newly replicated DNA. Answer: True
◉ How many hydrogen bonds are there between an A and its paired
nucleotide? Answer: 2
◉ During mRNA maturation what is the name of the part of the mRNA
that is removed? Answer: introns
◉ DNA replication in eukaryotes is sped up by multiple origins of
replication. Answer: true
◉ RNA synthesis, also called RNA transcription occurs in three phases.
List them from beginning to end in order. Answer: initiation, elongation,
termination
◉ Which nucleotide is different in RNA compared to DNA? Answer:
uridine
◉ There are two types of protein synthesis in eukaryotic cells. These
two types can be distinguished because the polyribosome is either or .
Answer: free; membrane bound
VERIFIED SOLUTIONS
◉ During DNA replication in the lagging strand there is production of
this component? Answer: Okazaki fragment
◉ How many "stop" codons exist? Answer: 3
◉ The double helix of DNA is wrapped about 1¾ times around which of
these components? Answer: Nucleosome
◉ Which enzyme unwraps the double helix? Answer: Helicase
◉ In the ribosome, what is the name of the bond that links one amino
acid to the next? Answer: peptide bonds
◉ List the two basic categories of nitrogenous bases in nucleic acids.
Answer: purine and pyrimidine
◉ In DNA, what does the nucleotide labeled as A pair with? Answer:
Thymine
, ◉ During DNA replication is greatly reduced by enzymes that proof
read the newly replicated DNA. Answer: True
◉ How many hydrogen bonds are there between an A and its paired
nucleotide? Answer: 2
◉ During mRNA maturation what is the name of the part of the mRNA
that is removed? Answer: introns
◉ DNA replication in eukaryotes is sped up by multiple origins of
replication. Answer: true
◉ RNA synthesis, also called RNA transcription occurs in three phases.
List them from beginning to end in order. Answer: initiation, elongation,
termination
◉ Which nucleotide is different in RNA compared to DNA? Answer:
uridine
◉ There are two types of protein synthesis in eukaryotic cells. These
two types can be distinguished because the polyribosome is either or .
Answer: free; membrane bound
