

Exploring the Basics of DNA Replication
Interactive Video
•
Science
•
6th - 10th Grade
•
Practice Problem
•
Hard
Standards-aligned
Lucas Foster
FREE Resource
Standards-aligned
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is DNA replication essential for living organisms?
To produce energy
To create proteins
For growth, repair, and development
For digestion
Tags
NGSS.HS-LS1-1
NGSS.HS-LS1-4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of bonds hold the sugar and phosphate backbone of DNA together?
Hydrogen bonds
Metallic bonds
Ionic bonds
Phosphodiester bonds
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which bonds are weaker and easier to break during DNA replication?
Hydrogen bonds
Ionic bonds
Covalent bonds
Metallic bonds
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of DNA helicase in DNA replication?
To synthesize proteins
To add nucleotides
To break hydrogen bonds
To repair DNA
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does DNA helicase do to the DNA helix?
Repairs mutations
Unzips the DNA helix
Breaks covalent bonds
Binds nucleotides
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of DNA polymerase during DNA replication?
To unzip the DNA helix
To break hydrogen bonds
To add nucleotides to the new DNA strand
To repair DNA
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does DNA polymerase ensure the accuracy of DNA replication?
By proofreading and correcting errors
By adding nucleotides to the new strand
By breaking hydrogen bonds
By unzipping the DNA helix
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