Exploring DNA Structure and Replication
Interactive Video
•
Biology
•
6th - 10th Grade
•
Practice Problem
•
Medium
Ethan Morris
Used 31+ times
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of DNA in living organisms?
To store genetic instructions
To provide energy
To transport nutrients
To protect cells from damage
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a nitrogenous base found in DNA?
Thymine
Uracil
Adenine
Cytosine
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of bond holds the nitrogenous bases together in the DNA double helix?
Covalent bonds
Ionic bonds
Metallic bonds
Hydrogen bonds
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In DNA, which base pairs with cytosine?
Adenine
Thymine
Guanine
Uracil
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the enzyme helicase in DNA replication?
To proofread the new DNA strand
To unzip the DNA double helix
To join Okazaki fragments
To add nucleotides to the new strand
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which enzyme is responsible for adding nucleotides to the growing DNA strand during replication?
DNA ligase
Helicase
RNA primase
DNA polymerase
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key structural difference between DNA and RNA?
DNA contains uracil, RNA contains thymine
DNA is single-stranded, RNA is double-stranded
DNA has deoxyribose sugar, RNA has ribose sugar
DNA is found in the cytoplasm, RNA is found in the nucleus
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