Profreading
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Occurs during DNA replication via DNA polymerase 3'---->5' exonuclease
capability
DNA Polymerase I
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Removes DNA primers and replaces them with DNA nucleotides
,Changing a single amino acid in a polypeptide chain
(Select all correct choices)
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always changes the primary structure of a protein
can sometimes change the tertiary structure of a protein
can affect protein function
sometimes changes the secondary structure of a protein
The fluid mosaic model describes biological membranes as consisting of
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a phospholipid bilayer with embedded proteins and peripheral proteins
Which of the following is found in a prokaryotic cell?
(Select all correct answers)
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, DNA/chromosome
plasma membrane
cell wall
ribosomes
Fecal transplants have been effective in treating patients with recurrent Clostridium
difficile infections. How do fecal transplants work?
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the healthy microbiome from the donor outcompetes the C. difficile that
has colonized the patient's gut
If a cell could not produce histone proteins, which of the following would be the most
likely immediate effect on that cell?
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the cell's DNA could not be packed into nucleosomes
In its natural environment, water will move into a bacterial cell by diffusion. Is the
cytosol of the bacterial cell isotonic, hypertonic, or hypotonic to its environment?
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, Hypertonic
single-strand binding proteins
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Bind to the unpaired DNA strands keeping them from re-pairing
One classification scheme commonly used by biologists organizes life into ___
domains named ____ (this is the classification scheme we looked at in lecture).
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three ... Bacteria, Archaea, Eukarya
Excision Repair
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Fixes DNA damage, such as thymine dimers, that can occur well after DNA
replication is completed
The following are the steps of enzyme action. Which of the following choices lists the
steps in the correct order?
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Occurs during DNA replication via DNA polymerase 3'---->5' exonuclease
capability
DNA Polymerase I
Give this one a try later!
Removes DNA primers and replaces them with DNA nucleotides
,Changing a single amino acid in a polypeptide chain
(Select all correct choices)
Give this one a try later!
always changes the primary structure of a protein
can sometimes change the tertiary structure of a protein
can affect protein function
sometimes changes the secondary structure of a protein
The fluid mosaic model describes biological membranes as consisting of
Give this one a try later!
a phospholipid bilayer with embedded proteins and peripheral proteins
Which of the following is found in a prokaryotic cell?
(Select all correct answers)
Give this one a try later!
, DNA/chromosome
plasma membrane
cell wall
ribosomes
Fecal transplants have been effective in treating patients with recurrent Clostridium
difficile infections. How do fecal transplants work?
Give this one a try later!
the healthy microbiome from the donor outcompetes the C. difficile that
has colonized the patient's gut
If a cell could not produce histone proteins, which of the following would be the most
likely immediate effect on that cell?
Give this one a try later!
the cell's DNA could not be packed into nucleosomes
In its natural environment, water will move into a bacterial cell by diffusion. Is the
cytosol of the bacterial cell isotonic, hypertonic, or hypotonic to its environment?
Give this one a try later!
, Hypertonic
single-strand binding proteins
Give this one a try later!
Bind to the unpaired DNA strands keeping them from re-pairing
One classification scheme commonly used by biologists organizes life into ___
domains named ____ (this is the classification scheme we looked at in lecture).
Give this one a try later!
three ... Bacteria, Archaea, Eukarya
Excision Repair
Give this one a try later!
Fixes DNA damage, such as thymine dimers, that can occur well after DNA
replication is completed
The following are the steps of enzyme action. Which of the following choices lists the
steps in the correct order?
