
DNA Structure and Function Concepts

Interactive Video
•
Biology
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary structure of DNA in most organisms?
Double helical structure
Single-stranded helix
Quadruple helix
Triple helix
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a component of a nucleotide?
Phosphate group
Sugar molecule
Nitrogenous base
Amino acid
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of bond connects adjacent nucleotides in a DNA strand?
Phosphodiester bond
Hydrogen bond
Covalent bond
Ionic bond
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which bond is responsible for connecting the two strands of DNA?
Ionic bond
Hydrogen bond
Phosphodiester bond
Peptide bond
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of phosphodiester bonds in DNA?
Separating DNA strands
Forming the double helix
Connecting nitrogenous bases
Linking adjacent nucleotides
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which nitrogenous bases are purines?
Adenine and Thymine
Thymine and Cytosine
Cytosine and Guanine
Adenine and Guanine
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many hydrogen bonds connect adenine and thymine?
One
Three
Four
Two
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