Biology I H
Name______________________________________Date__________________Per________
DNA Structure Quiz
1. DNA is
a. Nucleic acid
b. Carbohydrate
c. Protein
d. Lipid
2. DNA is a polymer made up of many smaller monomers. The monomer of DNA is
a. RNA
b. Nitrogenous base
c. Nucleotide
d. Phosphate
3. Which of the following descriptions best describes the image below:
a. Purine
b. Pyrimidine
c. Adenine
d. Guanine
4. Which of the following is not a part of a nucleotide?
a. phosphate group
b. pentose sugar
c. nitrogenous base
d. nucleic acid
5. Which of the following are ALL pyrimidines?
a. Guanine and adenine
b. Thymine and guanine
c. Adenine and thymine
d. Cytosine and thymine
6. DNA is double stranded. What type of bond holds the two strands of DNA together?
a. Phosphoacetyl bonds
b. Hydrogen bonds
c. Phosphodiester bonds
d. Nitrogenous bonds
7. Which scientist is responsible for doing the laboratory work (X-ray crystallography)
that led to the discovery of the 3-D structure of DNA?
a. Erwin Chargoff
b. James Watson
c. Rosalind Franklin
d. Francis Crick
8. In a DNA double helix, a region along one strand of DNA has the following sequence:
GCCTAATCA
What is the complementary sequence?
a. GCCTAATCA
b. CGGATTAGT
c. CGGAUUAGT
d. CGGATTAGA
9. If a DNA molecule contains 40% adenine, what are the percentages of each of the
other nitrogenous bases (think of Chargaff’s Rules)?
a. 20% cytosine, 20% adenine, 20% guanine
b. 20%thymine, 40% guanine, 40% cytosine
c. 40% thymine, 10% guanine, 10% cytosine
d. 40% uracil, 10% guanine, 10% cytosine
10. Who won the Nobel Prize for discovering the structure of DNA?
a. Watson only
b Watson & Cricke
c. Watson, Cricke & Wilkins
d. Watson, Cricke, Wilkins & Franklin
e. no one ever won the Nobel Prize for this discovery
11. What does DNA stand for
a. Deoxy Ribose Nucleic Acid
b Dioxy Reconstructed Acidity
c. Deoxyribonucleic Acid
d. Dioxy Ribonucleic Acid
12. The twisted ladder shape of DNA is technically called a(n)
a. spiral staircase
b double helix
c. chemical corkscrew
d. double nucleic acid slide
13. DNA is called the "blueprint of life" because
a. it is like a fingerprint
b it is located in the nucleus of an organism
c. it contains the plans for building an organism
d. it can relay messages to other molecules
14. Put these terms in the order from largest to smallest
Nucleotide, nitrogenous base, chromosome, DNA, nucleus
a. chromosome, DNA, nucleus, nucleotide, nitrogenous base
b nucleotide, nucleus, nitrogenous base, nucleus, DNA
c. nucleus, chromosome, DNA, nucleotide, nitrogenous base
d. chromosome, nucleus, DNA, nitrogenous base, nucleotide
15. DNA is copied by a process called
a. synthesis
b replication
c. binary fission
d. mitosis