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WorksheetsDNA, DNA Replication, and Protein Synthesis
Total questions: 35
Worksheet time: 18mins
Name
Class
Date
1.
Which of the following best describes the molecule of DNA?
a)
The molecule of life
b)
All living things contain DNA
c)
Contain genetic codes that determines physical features
d)
all the above
2.
Deoxyribonucleic acid best describes:
a)
DNA
b)
RNA
c)
Amino Acids
d)
Nucleotides
3.
_____ are the building blocks of DNA and RNA.
a)
amino acids
b)
nucleotides
c)
carbohydrates
4.
Which of the following is NOT a part of a nucleotide?
a)
Nitrogen Base
b)
Sugar
c)
Phosphate
d)
Amino Acid
5.
Which of the following is a nitrogen base found in DNA but not RNA?
a)
adenine
b)
uracil
c)
guanine
d)
thymine
6.
Which of the following correctly describe the rules for base pairing?
a)
Adenine only pairs with Thymine, Guanine pairs with Cytosine
b)
Cytosine only pairs with Thymine, Guanine pairs with Adenine
c)
Adenine only pairs with Guanine, Thymine pairs with Cytosine
d)
Adenine only pairs with Cytosine, Guanine pairs with Thymine
7.
Watson and Crick determined that the shape of DNA was best described as:
a)
a simple, single stranded molecule
b)
a complex, double helix
c)
a simple, straight molecule
8.
Which of the following best describes purines?
a)
Double ring structures that consist of adenine and guanine
b)
single ring structure that consist of adenine and guanine
c)
single ring structures that consist of thymine and cytosine
9.
In DNA, the nitrogen bases bond together using _______ bonds.
a)
nitrogen
b)
peptide
c)
hydrogen
10.
DNA replication occurs ______ cell division.
a)
before
b)
during
c)
after
11.
Which of the following best describes the first step in DNA replication?
a)
DNA helicase breaks the hydrogen bonds
b)
DNA Polymerase reads the DNA & determines new nucleotide
c)
strand of mRNA is read to create a protein structure
12.
Which of the following best describes the second step of DNA replication?
a)
DNA helicase breaks the hydrogen bonds
b)
DNA Polymerase reads the DNA
c)
strand of mRNA is read to create a protein structure
13.
Replication forks form at multiple points on a strand of DNA to speed up replication.
a)
true
b)
false
14.
DNA is a 3-D molecule made of linked nucleotides therefore we refer to DNA's direction as:
a)
left or right
b)
up or down
c)
5' and 3' prime
15.
DNA polymerase reads the parent molecule in the _____ direction.
a)
3' to 5' prime
b)
5' to 3' prime
c)
left to right
16.
Which of the following is not a characteristic of RNA?
a)
Double stranded
b)
uracil replaces thymine
c)
made of ribose sugar
d)
smaller than DNA
17.
_____ are considered the building blocks of protein.
a)
codons
b)
tRNA
c)
amino acids
18.
Which of the following types of RNA is the code (message) that is read to make proteins?
a)
mRNA
b)
tRNA
c)
rRNA
19.
Codons consist of groups of _____ nucleotide called triplets.
a)
1
b)
2
c)
3
d)
4
20.
A DNA template strand is 5'A C G T T A G C 3' Which of the following complementary mRNA strand?
a)
U G G U U A G G G
b)
U G C A A U C G
c)
A A U C G G
21.
There are _____ different amino acids.
a)
10
b)
15
c)
20
d)
25
22.
Which of the following best describes transcription?
a)
Within the nucleus mRNA is created by reading the DNA code
b)
RNA is used to create the correct amino acid sequence.
c)
occurs at a ribosome
23.
Translation occurs at:
a)
nucleus
b)
nuclear pores
c)
ribosomes
24.
Which of the following uses all three types of RNA?
a)
Transcription
b)
Translation
25.
______ is a major component of a ribosome that help bond amino acids together to make proteins.
a)
mRNA
b)
tRNA
c)
rRNA
26.
____ is responsible for transporting amino acids to the corresponding mRNA codon.
a)
mRNA
b)
tRNA
c)
rRNA
27.
tRNA bases are also referred to as ____.
a)
codons
b)
anti-codons
c)
amino acids
28.
Looking at the picture, number 1 indicates:
a)
tRNA
b)
protein
c)
mRNA
29.
Looking at the picture, number 5 indicates:
a)
tRNA
b)
protein
c)
mRNA
30.
Looking at the picture, number 3 indicates:
a)
protein
b)
mRNA
c)
amino acid
31.
Which of the following is the start codon?
a)
UAA
b)
UAG
c)
AUG
32.
Enzymes produce bacteria & DNA into specific sites in order to sequence DNA is refereed to as:
a)
RNA polymerase
b)
Restriction Enzymes
c)
Electrophopresis
33.
A technique used in forensics & paternity testing, where DNA is separated according to size:
a)
Automated Sequencing
b)
Gel Electrophoresis
c)
Electropherograms
34.
A ____ mutation exchanges one base for another.
a)
insertion
b)
deletion
c)
substitution
35.
Which of the following mutations occurs when extra base pairs are inserted into a place of DNA?
a)
substitution
b)
insertion
c)
deletion
d)
frame shift
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