DNA Replication Practice Test Questions
1. If I were examining a sequence of base pairs in a DNA molecule, which sequence would be possible in a properly constructed double-stranded DNA molecule?
a. A+T, C+G, T+A, T+A, G+C
b. A+T, G+C, C+C, T+U, G+T
c. G+C, C+G, A+U, U+A, T+A
d. G+G, C+C, A+A, T+T
2. During DNA replication nucleotides are added to which end of the new DNA strand?
a. 3' end
b. 5' end
c. 4' end
d. both ends at the same time
3. Where does the energy come from for DNA polymerization?
a. ATP
b. the sugar energy of the new nucleotide
c. breaking of a phosphate bond from the new nucleotide
d. ADP
4. Which is true about the pairing of bases in the DNA molecule?
a. purines always pair with pyrimidines
b. a single ring base pairs with another single ring base
c. a double ring base pairs with another double ring base
d. purines pair with purines and pyrimidines with pyrimidines
5. Where along the parent DNA strand does synthesis of the new DNA strand take place?
a. outside of the replication bubbles
b. at the forks of the replication bubbles
c. forks are used to pop the replication bubbles
d. only in areas were the DNA is "zipped up"
6. The fact that DNA is "antiparallel" means that
a. one strand is perpendicular to another
b. that each of the strands are exactly the same as each other
c. that the 2 strands are each constructed in opposite direction (i.e. each run in opposite directions)
d. that the strands are mirror images of each other
7. DNA molecule may be made using which of the following?
1.uracil
2.adenine
3.thymine
4.guanine
5.cytosine
a. 1, 2, 3, 4
b. 2, 3, 4, 5
c. 2, 3, 4
d. 1, 3, 5
e. 2, 4
8. DNA molecules are made of monomers called:
a. amino acids
b. polypeptides
c. nucleotides
d. nucleic acids
9. When a DNA molecule is copied, the result is two double stranded DNA molecules. Which best describes the resulting DNA molecules?
a. One double-stranded DNA molecule is made of the original DNA and the other is made of new DNA
b. Each double-stranded DNA molecule has one original strand and one new strand of DNA
c. Each double stranded molecule has one strand of DNA and one strand of RNA
d. All resulting strands of DNA are mixtures of old and new monomers.
10. Regarding the adenine purine base, which of the following apply?
a.It is only found in DNA.
b.It will bond with a thymine DNA nucleotide.
c.It will bond with a thymine RNA nucleotide.
d.All the above.
e. None of the above.
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