WorksheetsDNA Replication Reading Check
Total questions: 19
Worksheet time: 14mins
Name
Class
Date
1.
If a strand reads:
3' A A A T T T C 5'
The matching strand would read...
3' A A A T T T C 5'
The matching strand would read...
a)
5' T T T A A A G 3'
b)
3' T T T A A A G 5'
c)
5' A A A T T T C 3'
d)
3' U U U A A A G 5'
2.
What are the gaps between the newly synthesized DNA on the lagging strand called?
a)
Okazaki fragments
b)
Polymer gaps
c)
Helicase fragments
d)
Acidic gaps
3.
What is the shape of DNA?
a)
Double helix
b)
Triple helix
c)
Flat, bilayer
d)
Three-pronged rigid ladder
4.
DNA replication turns one strand of DNA into two new strands of DNA. What percent of each new strand is the old strand?
a)
Half of each new DNA is the old DNA
b)
The old strand of DNA was digested, so none
c)
The new DNA is entirely made up of the old DNA
d)
About every sixth base comes from the old DNA
5.
A process in which DNA has the unique ability to make an exact copy of itself.
a)
Replication
b)
Translation
c)
Transcription
6.
The bonds that hold the two strands of DNA together come from...
a)
the attraction of phosphate groups
b)
strong bonds between bases and sugars
c)
carbon to carbon bonds in the sugar
d)
weak hydrogen bonds between the bases
7.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
8.
The enzyme that unzips the DNA to prepare for replication
a)
helicase
b)
replicase
c)
polymerase
d)
synthase
9.
This picture is illustrating the ____ nature of DNA.
a)
anti-parallel
b)
deoxyribosic
c)
helical
d)
radioactive
10.
A DNA nucleotide contains all of the following, except...
a)
Deoxyribose
b)
Phosphate group
c)
Nitrogenous base
d)
Cholesterol
11.
Sometimes, DNA is called "semi-conservative." Why might this be?
a)
The old strand is "conserved" and used to make the new strands
b)
Uracil is "conserved" in that it is only used to make the new strands
c)
ATP is "conserved" via the usage of facilitated diffusion
d)
Ligase is "conserved" in that it is denatured by the process
12.
DNA replication results in
a)
2 completely new DNA molecules
b)
2 DNA molecules that each contain a strand of the original
c)
1 new DNA molecule and 1 old
d)
1 new molecule of DNA
13.
Created base pairing rules for nucleotide bases noting the ratios of complimentary bases
a)
Chargaff
b)
Preeti
c)
Lincoln
14.
Took X-ray crystallography pictures of DNA that aided DNA structure breakthrough
a)
Cherie Franklin
b)
Rosalind Franklin
c)
Benjamin Franklin
15.
Chain of amino acids
a)
DNA
b)
Protein
c)
RNA
16.
Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
17.
Which of the following units are repeatedly joined together to form a strand of DNA?
a)
amino acids
b)
nucleotides
c)
fatty acids
d)
polysaccharides
18.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
19.
At what point in the cell cycle does DNA replication occur and why?
a)
before a cell divides, to provide each of the two resulting cells with a complete set of DNA instructions
b)
before a cell divides, to ensure that the DNA will fit into the resulting cells
c)
during cell division, to ensure that the DNA will fit into the resulting cells
d)
after a cell divides, to provide each of the two resulting cells with a complete set of DNA instructions
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