
DNA Replication Concepts and Mechanisms
Interactive Video
•
Biology
•
9th - 10th Grade
•
Hard

Ethan Morris
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the nature of DNA strands in terms of directionality?
Perpendicular
Anti-parallel
Parallel
Circular
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which enzyme is responsible for unzipping the DNA double helix?
RNA primase
DNA polymerase
DNA helicase
DNA ligase
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which direction are new nucleotides added during DNA replication?
3' to 5'
5' to 3'
Random
Both directions
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main characteristic of the leading strand during DNA replication?
It is synthesized in the opposite direction of helicase movement.
It is synthesized continuously.
It is synthesized in fragments.
It does not require a primer.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the short DNA fragments called that are formed on the lagging strand?
Crick fragments
Helicase fragments
Watson fragments
Okazaki fragments
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which enzyme is responsible for joining Okazaki fragments?
DNA helicase
RNA primase
DNA ligase
DNA polymerase
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does changing the orientation of DNA strands affect the identification of leading and lagging strands?
It makes both strands lagging.
It makes both strands leading.
It reverses the roles of the strands.
It does not affect the identification.
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