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Home Q & A Board Biology-Related Homework Help Biochemistry
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Catalytic antibodies, also called ____, are generated against an antigen that is:
Catalytic antibodies, also called ____, are generated against an antigen that is:
Catalytic antibodies, also called ____, are generated against an antigen that is:
 
  a. abzymes; an analog of the transition-state intermediate in the reaction.
  b. abzymes; the substrate of the reaction.
  c. zymogens; an anal
alshernandez   40   1 Reply
6 years ago
Discuss polymerase chain reaction-based (PCR-based) mutagenesis.
Discuss polymerase chain reaction-based (PCR-based) mutagenesis.
Discuss polymerase chain reaction-based (PCR-based) mutagenesis.
 
  What will be an ideal response?
lovelyturret   40   1 Reply
6 years ago
Each cycle of amplification in PCR involves all of the steps EXCEPT:
Each cycle of amplification in PCR involves all of the steps EXCEPT:
Each cycle of amplification in PCR involves all of the steps EXCEPT:
 
  a. the addition of fresh dNTPs to the reaction mixture.
  b. annealing of oligodeoxyribonucleotide primers to DNA.
  c. thermal denaturation of the target d
Larrhea   40   1 Reply
6 years ago
The advantages of using the pET plasmid system include ____.
The advantages of using the pET plasmid system include ____.
The advantages of using the pET plasmid system include ____.
 
  a. genes to be expressed are under the control of a T7 promoter
  b. the T7 polymerase is slower than a typical E coli polymerase
  c. the expressed protein never a
sarah_verduzco1   40   1 Reply
6 years ago
The major interactions that fold components of the secondary structure of tRNA together and bend the ...
The major interactions that fold components of the secondary structure of tRNA together and bend the ...
The major interactions that fold components of the secondary structure of tRNA together and bend the cloverleaf into a stable L-shaped tertiary form are:
 
  a. hydrophobic interactions.
  b. base-pairing interactions.
  c. ionic
redheadprincess   40   1 Reply
6 years ago
Individual amino acids are attached to their corresponding tRNAs:
Individual amino acids are attached to their corresponding tRNAs:
Individual amino acids are attached to their corresponding tRNAs:
 
  a. through an ester linkage to the 3'-OH in the acceptor stem.
  b. through an amide linkage to the anticodon loop.
  c. through an amide linkage to the adenin
hiufwsiuefbwe   40   1 Reply
6 years ago
Naturally occurring, self-replicating, extra-chromosomal DNA molecules found in bacteria that carry ...
Naturally occurring, self-replicating, extra-chromosomal DNA molecules found in bacteria that carry ...
Naturally occurring, self-replicating, extra-chromosomal DNA molecules found in bacteria that carry genes specifying novel metabolic capacity advantageous to the bacterium are called:
 
  a. probes.
  b. cruciform.
  c. toroidal
MB0727   40   1 Reply
6 years ago
All are true for DNA polymerase EXCEPT:
All are true for DNA polymerase EXCEPT:
All are true for DNA polymerase EXCEPT:
 
  a. requires a primer with a free 5'-OH end, but the 3'-end may be phosphorylated.
  b. copies the sequence of nucleotides of one strand to form a new second strand.
  c. copies the sequ
Revolver38   40   1 Reply
6 years ago
The Ca2+-ATPase structure is like many of the other active transport proteins in that it has all of ...
The Ca2+-ATPase structure is like many of the other active transport proteins in that it has all of ...
The Ca2+-ATPase structure is like many of the other active transport proteins in that it has all of the components EXCEPT:
 
  a. transmembrane domain of ten -helical segments.
  b. a large cytoplasmic domain with nucleotide binding d
Jovaini   40   1 Reply
6 years ago
Discuss anomers.
Discuss anomers.
Discuss anomers.
 
  What will be an ideal response?
ugai_kyut   40   1 Reply
6 years ago
A glycosidic bond would be present in:
A glycosidic bond would be present in:
A glycosidic bond would be present in:
 
  a. -D-galactosamine.
  b. methyl--D-glucoside.
  c. 2-deoxy--D-ribose.
  d. -D-glucose-6-phosphate.
  e. -D-fructose-1, 6-bisphosphate.
omrglss   40   1 Reply
6 years ago
Alpha helices are stabilized primarily by:
Alpha helices are stabilized primarily by:
Alpha helices are stabilized primarily by:
 
  a. hydrogen bonds between the main chain peptide bond component atoms.
  b. electrostatic interactions between R-groups.
  c. hydrophobic interactions between the -carbons of the mai
alshernandez   40   1 Reply
6 years ago
Explain the role of trypsin in identifying the primary structure of a protein. What will be an ...
Explain the role of trypsin in identifying the primary structure of a protein. What will be an ...
Explain the role of trypsin in identifying the primary structure of a protein.
 
  What will be an ideal response?
Jnortontruvisio   40   1 Reply
6 years ago
Which of the following statements regarding ATP is true?
Which of the following statements regarding ATP is true?
Which of the following statements regarding ATP is true?
 
  a. the energy of hydrolysis is the same for all of the phosphate groups of the molecule
  b. despite the very exergonic nature of the hydrolysis, ATP does not hydrolyze spon
Miller123   40   1 Reply
6 years ago
Which sentence best describes the process of noncompetitive feedback inhibition?
Which sentence best describes the process of noncompetitive feedback inhibition?
[html]Which sentence best describes the process of noncompetitive feedback inhibition?


▸
CT16   40   1 Reply
3 years ago
12 is what percent of 36?
12 is what percent of 36?
12 is what percent of 36?

▸ 3%

▸ 30%

▸ 330%

▸ 12%

▸ 33%
yaqub   40   1 Reply
2 years ago
When calcium and oxygen combine, the formula of the product is CaO.
When calcium and oxygen combine, the formula of the product is CaO.
When calcium and oxygen combine, the formula of the product is CaO.

▸ true

▸ false
arlinguillen   40   1 Reply
2 years ago
The [H3O+] of a solution with pH = 2.0 is ________.
The [H3O+] of a solution with pH = 2.0 is ________.
The [H3O+] of a solution with pH = 2.0 is ________.

▸ 1 × 10-2 M

▸ -10 M

▸ 1 × 10-12 M

▸ 1 × 102 M

▸ 10 M
aemarmolejos   40   1 Reply
2 years ago
Which individual won a Nobel Prize for his landmark work in sequencing the protein insulin?
Which individual won a Nobel Prize for his landmark work in sequencing the protein insulin?
Which individual won a Nobel Prize for his landmark work in sequencing the protein insulin?
   A) Pauling     B) McClintock     C) Gilbert     D) Maxam     E) Sanger
jackamus   41   2 Replies
6 years ago
What is the advantage of having 20 different amino acids available to form proteins?
What is the advantage of having 20 different amino acids available to form proteins?
What is the advantage of having 20 different amino acids available to form proteins?
tulao68   41   1 Reply
6 years ago
Genes can be inserted into eukaryotic cells by:
Genes can be inserted into eukaryotic cells by:
Genes can be inserted into eukaryotic cells by
A)   viruses.    D)   All of the above.
B)   chemical treatment.    E)   None of the above.
C)   microinjection.
jackamus   41   2 Replies
6 years ago
What is the difference between a simple scoring system for alignment and the Blosum-62 matrix?
What is the difference between a simple scoring system for alignment and the Blosum-62 matrix?
What is the difference between a simple scoring system for alignment and the
Blosum-62 matrix?
jackamus   41   1 Reply
6 years ago
Which of the following is correct concerning the following equilibria?CO2 + H2O H2CO3A)An ...
Which of the following is correct concerning the following equilibria?CO2 + H2O H2CO3A)An ...
Which of the following is correct concerning the following equilibria?
CO2  +  H2O     H2CO3
A)   An increase in the pressure of CO2 will result in a decrease of pH.
B)   This reaction is catalyzed by carbonic anhydrase
jackamus   41   2 Replies
6 years ago
A _______________ is a stereoisomer that is not a mirror image.
A _______________ is a stereoisomer that is not a mirror image.
A _______________ is a stereoisomer that is not a mirror image.
jackamus   41   2 Replies
6 years ago
How do some viruses gain entry into specific cells?
How do some viruses gain entry into specific cells?
How do some viruses gain entry into specific cells?
A)   by attaching to ion channels
B)   by cleaving the glycosidic bonds and altering protein shapes
C)   by binding to glycoproteins on the cell surface that are unique to specific cells
tulao68   41   1 Reply
6 years ago
What does the notation 18:2 for fatty acids imply?
What does the notation 18:2 for fatty acids imply?
What does the notation 18:2 for fatty acids imply?
jackamus   41   1 Reply
6 years ago
Which of the following is the smallest ion?
Which of the following is the smallest ion?
Which of the following is the smallest ion?
   A) Cs+     B) Na+     C) K+     D) Rb+     E) Li+
tulao68   41   1 Reply
6 years ago
Many pumps are members of the P-type ATPases. If you discovered a new enzyme with similar function, ...
Many pumps are members of the P-type ATPases. If you discovered a new enzyme with similar function, ...
Many pumps are members of the P-type ATPases. If you discovered a new enzyme with similar function, what reaction product would help convince you that your enzyme was a member of this family?
jackamus   41   1 Reply
6 years ago
Since we know that certain amino acids are likely to be found in membranes, why is it so difficult ...
Since we know that certain amino acids are likely to be found in membranes, why is it so difficult ...
Since we know that certain amino acids are likely to be found in membranes, why is it so difficult to predict the structure of a channel protein?
tulao68   41   1 Reply
6 years ago
What are some of the functions of gap cells?
What are some of the functions of gap cells?
What are some of the functions of gap cells?
jackamus   41   2 Replies
6 years ago
What reaction is catalyzed by aldolase?
What reaction is catalyzed by aldolase?
What reaction is catalyzed by aldolase?
A)   isomerization of DHAP to GAP
B)   ligation of GAP and DHAP
C)   reversible cleavage of F-1,6-BP to DHAP and GAP
D)   cleavage of DHAP to GAP
E)   irreversible aldol condensation of DHAP
jackamus   41   1 Reply
6 years ago
What is the net ATP obtained from one cytoplasmic NADH when it is reoxidized by the ...
What is the net ATP obtained from one cytoplasmic NADH when it is reoxidized by the ...
What is the net ATP obtained from one cytoplasmic NADH when it is reoxidized by the electron-transport chain using the glycerol 3-phosphate shuttle?
   A)  2.5.     B)  1.5.     C)  2.0.     D)  1
tulao68   41   1 Reply
6 years ago
In membrane lipid biosynthesis, the nucleotide ________________ is used to activate the components ...
In membrane lipid biosynthesis, the nucleotide ________________ is used to activate the components ...
In membrane lipid biosynthesis, the nucleotide ________________ is used to activate the components of the reaction.
tulao68   41   1 Reply
6 years ago
What are the typical (normal) plasma and brain concentrations of glucose?
What are the typical (normal) plasma and brain concentrations of glucose?
What are the typical (normal) plasma and brain concentrations of glucose?
jackamus   41   1 Reply
6 years ago
What mechanism is used to ensure sufficient amino acids are available for protein biosynthesis?
What mechanism is used to ensure sufficient amino acids are available for protein biosynthesis?
What mechanism is used to ensure sufficient amino acids are available for protein biosynthesis?
jackamus   41   2 Replies
6 years ago
The tertiary structures in DNA are created by the process known as ______________.
The tertiary structures in DNA are created by the process known as ______________.
The tertiary structures in DNA are created by the process known as ______________.
jackamus   41   2 Replies
6 years ago
How are single-stranded regions of DNA maintained?
How are single-stranded regions of DNA maintained?
How are single-stranded regions of DNA maintained?
jackamus   41   1 Reply
6 years ago
Odor and some taste sensations are dependent on the stimulus of specific 7TM receptors causing ...
Odor and some taste sensations are dependent on the stimulus of specific 7TM receptors causing ...
Odor and some taste sensations are dependent on the stimulus of specific 7TM receptors causing triggering of _________________ stimulation.
tulao68   41   1 Reply
6 years ago
The biased random walk motion of bacteria is the result of:
The biased random walk motion of bacteria is the result of:
The biased random walk motion of bacteria is the result of
A)   swimming with less tumbling when Ca2+ levels are low.
B)   swimming with more tumbling when moving away from a chemorepellant.
C)   swimming with more tumbling when ATP binds
tulao68   41   1 Reply
6 years ago
What is the cause of Charcot-Marie-tooth disease?
What is the cause of Charcot-Marie-tooth disease?
What is the cause of Charcot-Marie-tooth disease?
jackamus   41   1 Reply
6 years ago
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