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WorksheetsDNA
Total questions: 22
Worksheet time: 24mins
Name
Class
Date
1.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
2.
Which scientists figured out the three-dimensional structure of DNA by using a model of metal and wood?
a)
Hershey and Chase
b)
Watson and Crick
c)
Pauling and Franklin
d)
Chargaff and Griffith
3.
What type of biomolecule is DNA?
a)
Protein
b)
Lipid
c)
Amino Acid
d)
Nucleic Acid
4.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
5.
A monomer of DNA is called a(n)
a)
Monosaccharide
b)
Amino Acid
c)
Triglyceride
d)
Nucleotide
6.
Nucleotides are made up of a sugar, phosphate, and..?
a)
nitrogenous base
b)
nucleic acid
c)
cholesterol
d)
fatty acid
7.
Which of the following is not part of a nucelotide?
a)
Fatty Acid Chain
b)
Five-Carbon Sugar
c)
Phosphate Group
d)
Nitrogen Base
8.
In humans, where does DNA replication take place?
a)
cytoplasm
b)
ribosome
c)
nucleus
d)
vacuole
9.
Which of the following is not a nitrogen base in DNA?
a)
Adenine
b)
Cytosine
c)
Uracil
d)
Thymine
10.
What holds base pairs together?
a)
hydrogen bonds
b)
sugar-phosphate backbones
c)
pairs of double-ringed nucleotides
d)
nitrogen-carbon bonds
11.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
12.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
13.
Figure 8.2 shows a single strand of DNA. Choose the first three nucleotides of the complementary DNA strand
a)
ATT
b)
CTA
c)
ATC
d)
ACG
14.
Which of the following best describes how DNA and RNA are similar?
a)
they both contain A and T
b)
They both have a double helix
c)
They are both composed of 5 different nucleotides
d)
they both have C and G
15.
The enzyme that unzips the DNA to prepare for replication
a)
helicase
b)
replicase
c)
polymerase
d)
synthase
16.
DNA replication results in two DNA molecules,
a)
each one with two original strands
b)
each one with two new strands
c)
each one with one new strand and one original strand
d)
one with two new strands and the other with two original strands
17.
Replication is referred to as...
a)
conservative
b)
semi-conservative
c)
quasi-conservative
d)
mostly liberal
18.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose and adenine
b)
deoxyribose and a hydrogen bond
c)
deoxyribose and the nucleus
d)
deoxyribose and phosphate
19.
DNA codes for...
a)
cholesterol
b)
proteins
c)
fatty acids
d)
carbohydrates
20.
What sugar is in DNA?
a)
deoxyribose
b)
ribose
c)
oxyribose
d)
deoxyose
21.
Which enzyme proofreads the DNA after replication to catch any mistakes?
a)
primase
b)
proof-read-ase
c)
DNA polymerase
d)
helicase
22.
Which of these is a function of DNA?
a)
Replicate Cells
b)
Create a genome
c)
Store Genetic Information
d)
Change in accordance with the environment
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