DNA Replication Practice Quiz!
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Have you ever wondered what you would do if you could make a clone of yourself? Most scientists believe that it is possible to do so by understanding the genetic make-up of a person though it has not been made possible. Well, I won't say it has not been done, because there is already a cloned sheep you probably know about. Do you need some help understanding DNA replication? Take this quiz with answers and refresh your memory before the test.
- 1.What are the four nitrogen bases for DNA?
- A.
Uracil, Thymine, Adenine, and Guanine
- B.
Cytosine, Thymine, Adenine, and Guanine
- C.
Thymine, Adenine, Lytosine, and Guanine
- D.
Thymine, Adenise, Guanine, and Cytosol
- 2.
![DNA replication is ____________________________, with each __________________ acting as a template for the synthesis of a complementary _______________.]( "DNA replication is ____________________________, with each __________________ acting as a template for the synthesis of a complementary _______________.")
- 3.
![What enzyme, pictured above, breaks apart the hydrogen bonds between two strands of DNA?]( "What enzyme, pictured above, breaks apart the hydrogen bonds between two strands of DNA?")
- A.
Histone
- B.
Helicase
- C.
Exonuclease
- D.
Endonuclease
- 4.
![What is pictured above in the DNA replication process?]( "What is pictured above in the DNA replication process?")
What is pictured above in the DNA replication process?- A.
Replication bubble
- B.
Leading strand
- C.
Lagging strand
- D.
Ligase
- E.
Replication fork
- 5.Which strand grows continuously towards the replication fork?
- A.
Lagging strand
- B.
DNA strand
- C.
RNA strand
- D.
Replicating strand
- E.
Leading strand
- 6.DNA polymerase III builds new strands from scratch during DNA replication. True or False?
- A.
True
- B.
False
- 7.
![DNA polymerase III reads the parent strand in a ____ to ____ direction, while building the new strand in ______ direction (____to _____).]( "DNA polymerase III reads the parent strand in a ____ to ____ direction, while building the new strand in ______ direction (____to _____).")
- 8.
- A.
Polymerase III
- B.
Ligase
- C.
Polymerase I
- D.
Helicase
- 9.The lagging strand is the new strand that grows discontinuously away from the replication fork.
- A.
True
- B.
False
- 10.
![What is the name of the fragments of the lagging strand pictured above?]( "What is the name of the fragments of the lagging strand pictured above?")
What is the name of the fragments of the lagging strand pictured above?- A.
Binding proteins
- B.
Fragmenting lagging strand
- C.
Okazaki segments
- D.
Coding strands
- 11.
![What enzyme will solve this problem in the lagging strand? (Pay attention to the red section in the picture).]( "What enzyme will solve this problem in the lagging strand? (Pay attention to the red section in the picture).")
- A.
Ligase
- B.
Binding proteins
- C.
Helicase
- D.
Polymerase I
- 12.
- A.
True
- B.
False
- 13.To make sure you can remember what you watched, what was the key element that kept the strands from binding back together once separated?
- A.
Binding proteins
- B.
Ligase
- C.
Helicase
- D.
DNA wall
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