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DNA Replication
Test Description: Choose the correct answer for each question.
Instructions: Answer all questions to get your test result.
1) The 'steps" of a DNA helix are composed of
A
nitrogen bases and hydrogen bonds
B
simple sugars only
C
simple sugars and hydrogen bonds
D
glucose and hydrogen bonds
2) The original strand of DNA is also know as the
A
oldest
B
newest
C
complimentary strand
D
template strand
3) DNA nucleotides are made of
A
nitrogen bases, a simple sugar, phosphate group
B
nitrogen bases only
C
DNA polymerase
D
glucose, hydrogen, phosphate group
4) What is the role of DNA polymerase in DNA replication?
A
To help the nitrogen bases stick together
B
Polymerizes (breaks) individual nucleotides to produce DNA
C
To move nucleotides to the cytoplasm
D
To produce RNA
5) Bases pairs found in a DNA helix are held together by what type of bond?
A
hydrogen bond
B
triple bonds
C
electron bonds
D
double bonds
6) The "backbone" of a DNA strand is composed of
A
nitrogen bases and hydrogen bonds
B
phophate groups and simple sugars
C
water
D
nitrogen bases
7) What causes DNA helix to to "unzip and unwind"?
A
enzymes
B
acids
C
phosphate groups
D
bases
8) The sequence on a DNA strand is GGCATTCGC what would the sequence on the complimentary strand be
A
CCCTAAGCG
B
CCGTAAGCG
C
CGCTAAGCG
D
CCGTTAGCG
9) How does DNA hold information?
A
in the hydrogen bonds
B
in the nucleus
C
in the sequence of nucleotides
D
in the cytoplasm
10) DNA is found in
A
prokaryotes only
B
prokaryotes and eukaryotes
C
humans only
D
eukaryotes only
*select an answer for all questions
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