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WorksheetsDNA
Total questions: 32
Worksheet time: 29mins
Name
Class
Date
1.
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
2.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
3.
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
4.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
5.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
6.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
7.
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
8.
What determines the code, or information, of a DNA molecule?
a)
the shape (structure) of the nitrogen bases
b)
the order (sequence) of the nitrogen bases
c)
the color of the nitrogen bases
d)
the frequency (number) of nitrogen bases
9.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose sugar and adenine
b)
deoxyribose sugar and a hydrogen bond
c)
deoxyribose sugar and the nucleus
d)
deoxyribose sugar and phosphate
10.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
11.
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
12.
A process in which DNA has the unique ability to make an exact copy of itself.
a)
Replication
b)
Translation
c)
Transcription
13.
In what phase of the cell cycle does DNA replication take place?
a)
G1
b)
S
c)
G2
d)
M
14.
What are the three components of a nucleotide?
a)
sugar, hydrogen, nitrogen base
b)
sugar, oxygen, nitrogen base
c)
sugar, phosphate, nitrogen base
d)
sugar, phosphate, protein
15.
The DNA is found in the nucleus of what type of organisms?
a)
Bacteria
b)
Eukaryotes
c)
Prokaryotes
d)
Viruses
16.
Which of the following is a base that is NOT contained in DNA?
a)
Adenine
b)
Thymine
c)
Uracil
d)
Guanine
17.
The principle Watson and Crick created that said adenine pairs with thymine and guanine pairs with cytosine is called
a)
base pairing
b)
super coiling
c)
replication
d)
substitution
18.
What does DNA stand for?
a)
Ribonucleic Acid
b)
Deoxyribonucleic Acid
c)
Both of these
d)
None of these
19.
DNA codes for...
a)
cholesterol
b)
proteins
c)
fatty acids
d)
a sandwich
20.
What sugar is in DNA?
a)
deoxyribose
b)
ribose
c)
oxyribose
d)
deoxyose
21.
Watson and Crick were the first to suggest that DNA is _____
a)
a short molecule
b)
the shape of a double helix
c)
a protein molecule
d)
the genetic material
22.
DNA is often considered the "______________" of life.
a)
Blueprint
b)
Mistake
c)
Swimming Pool
d)
Smelly Cheese
23.
What mutation has occurred here?
T-G-A-C-C-A
T-G-A-G-C-A
T-G-A-C-C-A
T-G-A-G-C-A
a)
Substitution
b)
Deletion
c)
Insertion
d)
Frameshift
24.
Are all mutations bad?
a)
Yes
b)
No
25.
Any change in the sequence of DNA nucleotides or chromosomes is called a
a)
mutation
b)
single genotype
c)
monohybrid trait
d)
transgenic shift
26.
In RNA, adenine binds with ?
a)
thymine
b)
uracil
c)
cytosine
d)
guanine
27.
Which of the following is a nucleotide of RNA?
a)
ribose-phosphate-uracil
b)
deoxyribose-phosphate-thymine
c)
ribose-phosphate-thymine
d)
deoxyribose-phosphate-uracil
28.
The process of making mRNA from DNA is called?
a)
replication
b)
translation
c)
transcription
d)
duplication
29.
What type of RNA travels outside the nucleus?
a)
transfer
b)
messenger
c)
ribosomal
d)
nuclear
30.
The actual decoding of mRNA to a protein is called ?
a)
translation
b)
replication
c)
transcription
d)
nuclear fission
31.
The three letter code is called a?
a)
script
b)
codon
c)
tri code
d)
gene
32.
What organelle does the mRNA attach to in order to make the protein?
a)
ribosome
b)
mitochondria
c)
chloroplast
d)
lysosome
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