Online Guided Notes Quiz: Nucleic Acids and Protein Synthesis

Write the answers to this quiz on your looseleaf sheet.

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
____ 1. The primary function of DNA is to

a. make proteins.
b. store and transmit genetic information.
c. control chemical processes within cells.
d. prevent mutations.


____ 2. Molecules of DNA are composed of long chains of
a. amino acids.
c. monosaccharides.
b. fatty acids.
d. nucleotides.


____ 3. Which of the following is not part of a molecule of DNA?
a. deoxyribose
b. phosphate
c. nitrogenous base
d. ribose


____ 4. Data from the U.S. Census shows that people who have No High School Diploma earn $15,570 a year, people with a High School Diploma earn $22,481 a year and people with a Bachelor’s Degree earn .
a. $40,347 a year
c. $10 a year
b. $1 a year
d. $0 a year


____ 5. A nucleotide consists of
a. a sugar, a protein, and adenine.
b. a sugar, an amino acid, and starch.
c. a sugar, a phosphate group, and a nitrogen-containing base.
d. a starch, a phosphate group, and a nitrogen-containing base.


____ 6. The scientists credited with establishing the structure of DNA are
a. Avery and Chargaff.
c. Mendel and Griffith.
b. Hershey and Chase.
d. Watson and Crick.


____ 7. X-ray diffraction photographs by Wilkins and Franklin suggested that
a. DNA and RNA are the same molecules.
b. DNA is composed of either purines or pyrimidines, but not both.
c. DNA molecules are arranged as a tightly coiled helix.
d. DNA and proteins have the same basic structure.

____ 8. Watson and Crick built models that demonstrated that
a. DNA and RNA have the same structure.
b. the DNA helix is held together by hydrogen bonds.
c. guanine forms hydrogen bonds with adenine.
d. thymine forms hydrogen bonds with cytosine.


____ 9. Chargaff’s rules, or the base-pairing rules, state that in DNA
a. the amount of adenine equals the amount of thymine.
b. the amount of guanine equals the amount of cytosine.
c. the amount of guanine equals the amount of thymine.
d. Both a and b


____ 10. The base-pairing rules state that the following are base pairs in DNA:
a. adenine—thymine; uracil—cytosine.
b. adenine—thymine; guanine—cytosine.
c. adenine—guanine; thymine—cytosine.
d. uracil—thymine; guanine—cytosine.


____ 11. ATTG : TAAC ::
a. AAAT : TTTG
c. GTCC : CAGG
b. TCGG : AGAT
d. CGAA : TGCG


Completion
Complete each sentence or statement.

12. Watson and Crick determined that DNA molecules have the shape of a(n) ___________________.

13. According to base-pairing rules, adenine pairs with ____________________ and guanine pairs with ____________________.

14. I found today’s activity interesting (write yes or no and why).