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Unit 6 (Quiz 2): Protein Synthesis and Mutations - 2025

Total questions: 30

Worksheet time: 32mins

Name
Class
Date
1.
RNA is read in sections called:
a)
Triplets
b)
Genes
c)
Codons
d)
Genes
2.
Transcription is a process that in eukaryotic cells takes place in the:
a)
Nucleus
b)
Cytoplasm
c)
Golgi Apparatus
d)
Rough E.R.
3.
What is the RNA synthesized from a section of DNA with the code: GATTACA ?
a)
CUAAUGU
b)
GATTACA
c)
GAUUCA
d)
CTAATGA
4.
The enzyme that produces RNA in Transcription is called
a)
RNA Polymerase
b)
DNA Polymerase
c)
Transcriptase
d)
RNA Intrase
5.
tRNA molecules match the mRNA codons with a(n):
a)
Codon
b)
Anti-Codon
c)
Intron
d)
Methylated Cap
6.
Translation begins with a(n):
a)
Start Codon
b)
Intron
c)
Promoter
d)
Origin
7.
When the Ribosome reaches ________________ the process of translation stops
a)
Stop Codon
b)
Okazaki Fragment
c)
Terminator
d)
taq Polymerase
8.
Translation is a process that produces
a)
mRNA
b)
Protein
c)
Polypeptide Chains
d)
tRNA
9.

Which of the following are differences in the structure between RNA and DNA.

a)

DNA uses deoxyribose sugar, RNA uses sugar ribose

b)

DNA pairs Adenine with Uracil, RNA pairs Adenine with Thymine

c)

DNA is a double helix, RNA is a single helix

d)

DNA pairs Adenine with Thymine, RNA pairs Adenine with Uracil

10.

Insertion, deletion, and substitution are all examples of a change in a genetic sequence which is also referred to as

a)

a gene.

b)

an amino acid.

c)

ribose.

d)

a mutation.

11.

During transcription, this type of ribonucleic acid is responsible for copying the DNA and brining it out of the nucleus.

a)

tRNA

b)

mRNA

c)

rRNA

d)

dRNA

12.

When these bond together, they form a protein

a)

Amino Acids

b)

Peptide Bonds

c)

Ribose

d)

Nucleotides

13.

A string of nucleotides that contain the information to make a specific protein

a)

Ribose

b)

Amino Acids

c)

tRNA

d)

Gene

14.

During translation, this type of ribonucleic acid is responsible for delivering amino acids to help make a protein.

a)

mRNA

b)

rRNA

c)

tRNA

d)

dRNA

15.

There are a total of ____ different amino acids

a)

20

b)

1

c)

4

d)

unlimited

16.

How many amino acids are found on one tRNA?

a)

20

b)

4

c)

1

d)

3

17.
_______ is made during transcription and ________ is made during translation.
a)
mRNA / a protein
b)
a protein / mRNA
c)
Ribosome / Nucleus
d)
mRNA / tRNA
18.
How many amino acids are coded for by this sequence of nucleotides:
ATG GGA ACT CCA
a)
4
b)
2
c)
6
d)
12
19.
What amino acid is represented by the codon UUA?
a)
Phenylalanine
b)
Tyrosine
c)
Leucine
d)
Stop codon
20.
DNA holds the code for
a)
lipids
b)
carbohydrates
c)

proteins

d)

sugars

21.
Which is the mRNA molecule that would be transcribed from this DNA template:
TGGCAAGTACGT
a)
ACCGTTCATGCA
b)
UGGCAAGUACGU
c)
UCCGUUCUUGCU
d)
ACCGUUCAUGCA
22.
Does the order of amino acids in a protein matter?
a)
YES!
b)
NO!
23.
What is the correct amino acid sequence for the mRNA code AUGCCAGUAUGA
a)
Met-Pro-Ala-Val
b)
Met-Pro-Val
c)
Tyr-Gly-His
d)
Tyr-Gly-Arg-His
24.
What mutation has occurred here? 
T-G-A-C-C-A
T-G-A-G-C-A
a)
Substitution
b)
Deletion
c)
Insertion
d)
Frameshift 
25.

Original: ATC CAT CGC
Mutation: ATC GCA TCG
What mutation occurred?

a)
deletion
b)
insertion
c)
silent
d)
transverse
26.
Why are insertion and deletion (frameshift) mutations so harmful?
a)
They change all of the codons from the mutation on down the line, which changes the amino acid sequence
b)
They insert things that an organism doesn't need.
c)
They often delete things that organisms need.
d)
Insertion and deletions are not any more harmful than substitution mutations.
27.

ATTTGAGCC - Original
ATTGAGCCG - Mutated
The example above is an example of a 

a)

Frameshift Insertion

b)

Deletion Substitution

c)

Frameshift Deletion

d)

Point Mutation

28.

Which of the following is a type of RNA?

a)

mRNA

b)

tRNA

c)

rRNA

d)

All of these are types of RNA

29.
DNA polymerase and RNA polymerase are different in that they
a)
are involved in synthesis of different polymers
b)
DNA is a biological catalyst and RNA is not
c)
DNA polymerase synthesizes proteins and RNA polymerase synthesizes carbohydrates
d)
Stop trying to trick me; none of these are true!
30.

Which organelle is the site where translation occurs?

a)

ribosomes

b)

tRNA

c)

mRNA

d)

lysosomes

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