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Mutations and Protein Synthesis

Total questions: 25

Worksheet time: 21mins

Name
Class
Date
1.
What are the building blocks of proteins called?
a)
DNA
b)
RNA
c)
Ribosomes
d)
Amino Acids
2.

In which of the following ways does genetic information typically flow in an organism?

a)

trait --> proteins --> RNA --> DNA

b)

RNA --> trait -->protein --> DNA

c)

DNA --> RNA --> protein --> trait

d)

DNA --> protein --> trait--> RNA

3.
How would the DNA sequence GCTATA be transcribed to mRNA?
a)
GCUAUA
b)
CGATAT
c)
CGAUAU
d)
GCUTUT
4.
The main function of tRNA is to...
a)
carry a message that, when translated, forms proteins
b)
form a portion of ribosomes
c)
string together complementary RNA and DNA strands
d)
bring amino acids from the cytoplasm to the ribosomes
5.

What is the purpose of the cellular process shown in the image?

a)

Preserving genetic information for future generations

b)

Deleting the information in the sequence produced from the DNA template

c)

Transcribing information in the DNA sequence for use by the cell

d)

Producing more nucleotides for the DNA sequence

6.

If the mRNA codons read ACA-GUA-GAA-UUG-AUC, what amino acids make up the protein sequence?

a)

Cys-Val-Gly-Ser-Stop

b)

Cys-His-Leu-Asn-Stop

c)

Thre-Val-Glu-Leu-Iso

d)

None of the above

7.

A mutation is a _______________ in the nucleotide base sequence of a gene.

a)

wrinkle

b)

change

c)

bump

d)

tumor

8.

What process is occurring at number 1 in the diagram?

a)

Translation

b)

mRNA

c)

protein synthesis

d)

Transcription

9.

What type of mutation is this?


Original DNA;

TATGAACTGGAA


Mutated DNA;

TATGAATTGGAA

a)

Substitution

b)

Insertion

c)

Deletion

d)

Frameshift

10.

Which of these mutations most likely results in the mutated hemoglobin gene?

a)

insertion

b)

deletion

c)

duplication

d)

substitution

11.
What is the molecule pictured here?
a)
DNA
b)
RNA
c)
Nitrogen Base
d)
Nucleotide
12.
Which organelle from the plant cell is primarily responsible for converting sunlight to energy?
a)
Mitochonria
b)
Nucleus
c)
Vacuole
d)
Chloroplast
13.
____ is the activation of a gene that results in transcription.
a)
Gene expression
b)
Gene technology
c)
Eukaryotic expression
d)
Prokaryotic expression
14.

How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though the look and perform are completely different?

a)

The two different cells become mutated

b)

The proteins expressed in each cell are different

c)

They actually have different DNA in the two types of cells.

d)

The genome of the different cells changes

15.
What causes mutations?
a)
All of the above 
b)
mistakes in DNA replication 
c)
UV rays (sun exposure) 
d)
Carcinogens (cancerous chemicals) 
16.
The main function of tRNA is to...
a)
carry a message that, when translated, forms proteins
b)
form a portion of ribosomes
c)
string together complementary RNA and DNA strands
d)
bring amino acids from the cytoplasm to the ribosomes
17.
What is the term for a three-nucleotide sequence that codes for an amino acid?
a)
base
b)
codon
c)
amine
d)
serine
18.

A gene is

a)

the same as a chromosome

b)

the info for making a polypeptide

c)

made of RNA

d)

made of protein

19.

Any change in the nucleotide sequence of a gene is called

a)

a mutation

b)

a codon

c)

a translation

d)

an anticodon

20.
Translation is a process that produces
a)
mRNA
b)
Protein
c)
Polypeptide Chains
d)
tRNA
21.
What is does this image represent? 
a)
Mutation
b)
Translation 
c)
tRNA
d)
Transcription 
22.
Which amino acid pairs with the codon AGA
a)
Thr
b)
Arg
c)
Ala
d)
Glu
23.
The codon CCU codes for what amino acid?
a)
Isoleucine
b)
Stop
c)
Methionine
d)
Proline
24.
Set of nitrogen bases that are complementary to one codon
a)
peptide bond
b)
polypeptide
c)
anti-codon
d)
amino acid
25.
What amino acid is represented by the codon UUA?
a)
Phenylalanine
b)
Tyrosine
c)
Leucine
d)
Stop codon