WorksheetsDNA Unit Review
Total questions: 41
Worksheet time: 42mins
Name
Class
Date
1.
Which sequence of DNA bases would pair with this partiaal 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 are the 4 nitrogen bases?
a)
adenine, thymine, cytoplasm, and guanine
b)
adenine, thymine cytosine, and guanine
c)
adenine, thymine, cytosine, and gylcerol
d)
adenine, thymine, cytosine, and glucose
9.
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
10.
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
11.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
12.
Name this structure
a)
double helix
b)
nucelotide
c)
twisted ladder
d)
hydrogen bond
13.
DNA codes for...
a)
cholesterol
b)
proteins
c)
fatty acids
d)
a sandwich
14.
Nitrogenous bases are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
15.
Nucleotides are made up of a sugar, phosphate, and..?
a)
nitrogenous base
b)
nucleic acid
c)
cholesterol
d)
fatty acid
16.
Which process is shown?
a)
diffusion
b)
repiration
c)
recombination
d)
translation
17.
What molecules do both DNA and RNA contain?
a)
uracil
b)
nucleotides
c)
thymine
d)
deoxyribose
18.
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
19.
The DNA sequence ATCAGCGCTGGC is part of a gene. How many amino acids are coded for by this message?
a)
4
b)
8
c)
12
d)
20
20.
DNA sequence is ACAGTGC. How would this be coded on mRNA?
a)
TGTCACG
b)
UGUCACG
c)
GUGACAU
d)
CACUGUA
21.
What is the relationship between a protein, the cell, and DNA?
a)
DNA is produced by protein which is produced in the cell
b)
Protein is composed of DNA which is produced in the cell
c)
DNA controls the production of protein in the cell
d)
A cell is composed of DNA and protein
22.
Genetic info flows in one direction. Which best represents this flow?
a)
DNA-protein-RNA
b)
Protein-RNA-DNA
c)
RNA-protein-DNA
d)
DNA-RNA-protein
23.
Which of the following is incorrect regarding RNA?
a)
RNA contains uracil
b)
RNA can only be found inside the nucleus
c)
RNA is single stranded
d)
RNA contains genetic information
24.
The diagram shows the process of
a)
Transcription
b)
Translation
c)
Replication
d)
Mitosis
25.
What nitrogen base is in DNA but NOT RNA?
a)
uracil
b)
thymine
c)
guanine
d)
adenine
26.
The process by which a DNA molecule is copied is called _____.
a)
binary fission
b)
mitosis
c)
replication
d)
translation
27.
Which series is arranged in order from largest to smallest in size?
a)
chromosome, nucleus, cell, DNA, nucleotide
b)
cell, nucleus, chromosome, DNA, nucleotide
c)
nucleotide, chromosome, cell, DNA, nucleus
d)
cell, nucleotide, nucleus, DNA, chromosome
28.
The genetic material of an organism is composed of
a)
lipids
b)
proteins
c)
Deoxyribonucleic acid
d)
complex carbohydrates
29.
A five-carbon sugar found in DNA.
a)
ribose
b)
guanine
c)
deoxyribose
d)
helicase
30.
An enzyme that unwinds the double helix of DNA and separates the DNA strands in preparation for DNA replication
a)
DNA polymerase
b)
RNA polymerase
c)
nucleotide
d)
helicase
31.
Amino acids are bonded together by a
a)
hydrogen bond
b)
peptide bond
c)
ionic bond
d)
they are not bonded
32.
Where does DNA replication take place?
a)
Nucleus
b)
Ribosome
c)
Cytoplasm
d)
Golgi Body
33.
Where does transcription take place?
a)
nucleus
b)
ribosome
c)
cytoplasm
d)
smooth ER
34.
The process of making mRNA from DNA is called.
a)
Replication
b)
Transcription
c)
Translation
d)
Protein synthesis
35.
A triplet of mRNA is called a
a)
codon
b)
anticodon
c)
amino acid
d)
peptide bond
36.
The anticodon is located on
a)
DNA
b)
mRNA
c)
tRNA
d)
rRNA
37.
Which molecule brings the amino acid to the ribosome?
a)
DNA
b)
mRNA
c)
tRNA
d)
rRNA
38.
Which molecule makes up the ribosome?
a)
DNA
b)
mRNA
c)
tRNA
d)
rRNA
39.
Protein synthesis takes place in two parts:
a)
Transcription then translation
b)
Replication then transcription
c)
Translation then transcription
d)
Replication then translation
40.
mRNA stands for
a)
my RNA
b)
messenger RNA
c)
mitosis RNA
d)
mutated RNA
41.
An enzyme that adds complementary nucleotides to the template strand of the unzipped double helix until the entire molecule has been replicated.
a)
RNA Polymerase
b)
Okazaki Fragments
c)
DNA Polymerase
d)
Translation
100 %
