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WorksheetsDNA Structure Notes Review
Total questions: 25
Worksheet time: 16mins
What alternates with phosphates to make the backbone of DNA?
Sugars
Proteins
Lipids
Amino acids
What is the name of the sugar in the DNA backbone?
Glucose
Fructose
Deoxyribose
Ribose
Which nitrogen base pairs with adenine (A) in DNA?
Cytosine (C)
Guanine (G)
Thymine (T)
Uracil (U)
What type of nitrogen base is guanine (G)?
Pyrimidine
Purine
Carbohydrate
Lipid
How many rings do pyrimidines have?
One
Two
Three
Four
Which of the following bases is a pyrimidine?
Adenine (A)
Guanine (G)
Cytosine (C)
Uracil (U)
What do hydrogen bonds do in the structure of DNA?
They hold the opposite sides of the ladder together.
They break the DNA strands apart.
They form the backbone of the DNA.
They connect the sugar and phosphate groups.
How many hydrogen bonds connect adenine (A) to thymine (T) in DNA?
1
2
3
4
How many hydrogen bonds connect guanine (G) to cytosine (C) in DNA?
1
2
3
4
Which of the following is one of the three subunits that make up DNA?
Amino acids
Nucleotides
Proteins
Lipids
Which of the following is NOT a part of a nucleotide?
Sugar (Deoxyribose)
Phosphate
Lipid
Base (A, T, C, or G)
What does DNA stand for?
Deoxyribonucleic Acid
Deoxyribose Acid
Deoxynucleic Acid
Deoxyribose Nucleic Acid
Which of the following best describes the shape of DNA?
Double Helix
Single Strand
Triple Helix
Circular Loop
What does it mean when DNA is described as antiparallel?
Strands run in opposite directions
Strands run in the same direction
Strands are parallel
Strands are perpendicular
Which base pairs are complementary in DNA?
A and T, C and G
A and C, T and G
A and G, C and T
A and T, G and C
Why is DNA different from one species to another?
The order of bases (A, T, C, G) is different
The number of bases is different
The type of sugar is different
The phosphate backbone is different
What are the sides of the DNA double helix ladder made of?
Alternating sugar and phosphates
Nitrogen bases
Proteins
Lipids
Which of the following is a nitrogen base found in DNA?
Adenine
Uracil
Ribose
Deoxyribose
Which nitrogen base pairs with Thymine in DNA?
Adenine
Cytosine
Guanine
Uracil
Which two bases in DNA are Purines?
Adenine and Guanine
Thymine and Cytosine
Adenine and Thymine
Cytosine and Guanine
What type of sugar is found in a nucleotide?
Glucose
Fructose
Deoxyribose
Ribose
Which of the following is a nitrogen base found in DNA?
Adenine
Uracil
Thymine
Cytosine
Label the nucleotide
Phosphate
Sugar
Nitrogenous base
Select ALL the Phosphate Group
Select ALL the NITROGEN BASES in the picture (4 total)
