Restriction Enzymes are naturally found in bacteria that use them to A. Replicate DNA B. Correct...
Restriction Enzymes are naturally found in bacteria that use them to
| A. | Replicate DNA | |
| B. | Correct mutated DNA | |
| C. | Cut up the DNA of invading Bacteriophage | |
| D. | complete conjugation |
Homework Answers
Option C is the correct answer.
Restriction endonuclease is a protein produced by bacteria that cleaves DNA at specific sites along the molecule. In the bacterial cell, restriction enzymes cleave foreign DNA, thus eliminating infecting organisms. Restriction enzymes can be isolated from bacterial cells and used in the laboratory to manipulate fragments of DNA.
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Restriction Enzymes are naturally found in bacteria that use
them to
A.
Replicate DNA
B.
Correct...
Which of the following is not a use of restriction enzymes? A. Bacteria produce them to...
Which of the following is not a use of restriction enzymes? A. Bacteria produce them to cut up foreign viral DNA B. Making recombinant DNA C. Cutting a vector when cloning a gene D. Replicating DNA during PCR
Question 18 4 pts What role do restriction enzymes play in bacteria? How do bacteria protect...
Question 18 4 pts What role do restriction enzymes play in bacteria? How do bacteria protect their own DNA from the action of restriction enzymes? Change the surface proteins of bacteria; since DNA is not protein, there is no need for protection Cut foreign DNA into pieces; bacteria have RNA genomes. Destroy invading viral DNA: bacterial DNA does not contain the restriction enzyme recognition sequences. Restrict the growth rate of bacteria; bacterial DNA is restriction enzyme resistant. Question 18 4...
Bacteria use restriction enzymes to: O A. Conjugate OB. transcribe DNA OC. Defend themselves against bacteriophage...
Bacteria use restriction enzymes to: O A. Conjugate OB. transcribe DNA OC. Defend themselves against bacteriophage (virus) OD. link the okazaki fragments produced during DNA replication Reset Selection Mark for Review What's This?
14. Restriction endonucleases are a. enzymes that restrict DNA synthesis b. enzymes that cut DNA in...
14. Restriction endonucleases are a. enzymes that restrict DNA synthesis b. enzymes that cut DNA in specific sequences c. nuclear proteins that are involved in transcription d. components of the ribosomes involved in protein synthesis 15. The first step in southern blotting is a. converting DNA into RNA b. cutting high molecular weight DNA into smaller pieces c. converting RNA into DNA d. radioactively labeling the DNA so it can be detected after the procedure is complete 16. The major...
Which is not true about restriction enzymes? a. They cut RNA b. They evolved as a...
Which is not true about restriction enzymes? a. They cut RNA b. They evolved as a bacteria defense mechanism c. They can leave single-stranded overhanging sequences called Sticky ends d. They recognize a specific target sequence e.They cut DNA
1.When cloning a PCR product into a plasmid using restriction enzymes, the restriction enzyme recognition sequences...
1.When cloning a PCR product into a plasmid using restriction enzymes, the restriction enzyme recognition sequences in the PCR product most likely came from _______, and the restriction enzyme recognition sequences in the plasmid most likely came from ________. a. A multiple cloning site / the primers b. The primers / a multiple cloning site c. Both came from primers d. Both came from the multiple cloning site e. Naturally present in the gene of interest / the multiple cloning...
24. What do restriction enzymes do? A Randomly cut DNA B. Produce protein C. Cut DNA...
24. What do restriction enzymes do? A Randomly cut DNA B. Produce protein C. Cut DNA at a specific nucleotide sequence D. Copy DNA 25. Which of the following is an example of a differentiated cell? A. Embryonic Stem Cell B. Hematopoeitic Stem Cell C. Adult Stem Cell D. Liver Cell 26. An example of a small, circular DNA molecule used as a vector to transfer foreign DNA to a host cell is a A. plasmid B prion C. liposome...
A polylinker increases the versatility of a DNA plasmid because it: (select all correct answers) A)...
A polylinker increases the versatility of a DNA plasmid because it: (select all correct answers) A) facilitates the cloning of DNA segments. B) contains a DNA sequence that confers resistance to ampicillin. C) contains a DNA sequence to allow the vector to replicate. D)contains DNA recognition sequences for several different restriction enzymes. 2. You have an E. coli plasmid whose sequence contains three EcoRI restriction sites. How many DNA fragments would result from a complete EcoRI restriction enzyme digest? a....
Need help with number 1,5,6,7 and 8 please Restriction enzymes are a.) bacterial enzymes that elongate...
Need help with number 1,5,6,7 and 8 please
Restriction enzymes are a.) bacterial enzymes that elongate DNA b.) viral enzymes that destroy host DNA c.) bacterial enzymes that destroy incoming foreign DNA d.) animal enzymes that splice RNA Mice that are injected with only the R strain of Streptococcus pneumoniae a.) become sick and then recover b.) stay healthy, this is a non-virulent strain c.) are killed, this is the virulent strain Mice that are injected with only the S...
Which of the following statement(s) is(are) true about restriction enzymes? A)discovered in bacteria B)cleave the...
Which of the following statement(s) is(are) true about restriction enzymes? A)discovered in bacteria B)cleave the phosphodiester bond in the backbone C)cleave the peptide bond in the backbone D)produces random fragments E)recognizes specific sequences
Question 18 4 pts What role do restriction enzymes play in bacteria? How do bacteria protect their own DNA from the action of restriction enzymes? Change the surface proteins of bacteria; since DNA is not protein, there is no need for protection Cut foreign DNA into pieces; bacteria have RNA genomes. Destroy invading viral DNA: bacterial DNA does not contain the restriction enzyme recognition sequences. Restrict the growth rate of bacteria; bacterial DNA is restriction enzyme resistant. Question 18 4...
Bacteria use restriction enzymes to: O A. Conjugate OB. transcribe DNA OC. Defend themselves against bacteriophage (virus) OD. link the okazaki fragments produced during DNA replication Reset Selection Mark for Review What's This?
24. What do restriction enzymes do? A Randomly cut DNA B. Produce protein C. Cut DNA at a specific nucleotide sequence D. Copy DNA 25. Which of the following is an example of a differentiated cell? A. Embryonic Stem Cell B. Hematopoeitic Stem Cell C. Adult Stem Cell D. Liver Cell 26. An example of a small, circular DNA molecule used as a vector to transfer foreign DNA to a host cell is a A. plasmid B prion C. liposome...
Need help with number 1,5,6,7 and 8 please
Restriction enzymes are a.) bacterial enzymes that elongate DNA b.) viral enzymes that destroy host DNA c.) bacterial enzymes that destroy incoming foreign DNA d.) animal enzymes that splice RNA Mice that are injected with only the R strain of Streptococcus pneumoniae a.) become sick and then recover b.) stay healthy, this is a non-virulent strain c.) are killed, this is the virulent strain Mice that are injected with only the S...
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