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DNA, RNA & Protein Synthesis

Total questions: 44

Worksheet time: 1hrs 11mins

Name
Class
Date
1.
A portion of mRNA is coded CUG. The corresponding DNA is coded
a)
GAC
b)
GTC
c)
CTG
d)
CAG
2.
A portion of DNA reads GAG. The corresponding mRNA would be
a)
GUG
b)
GTG
c)
CTC
d)
CUC
3.
The process of creating RNA using DNA as the template is
a)
translation
b)
transcription
c)
translocation
d)
Transylvania
4.
In RNA, uracil takes the place of the DNA nitrogen base called
a)
guanine
b)
cytosine
c)
thymine
d)
adenine
5.
In eukaryotes, molecule 1 is found in
a)
ribosomes
b)
chloroplasts
c)
cytoplasm
d)
the nucleus
6.
Molecule 3 is synthesized in 
a)
ribosomes
b)
chloroplasts
c)
the cell membrane
d)
the nucleus
7.

The structure of a nucleotide consists of a

a)

A phosphate, A deoxyribose sugar, a nitrogenous base

b)

A phosphate base, Ribose sugar, a nitrogen

c)

DNA, RNA, Protein

d)

DNA, Protein, Amino Acids

8.

tRNA has anticodons and amino acids attached to it

a)

True

b)

False

9.

mRNA occurs during translation

a)

True

b)

False

10.

In mRNA, each codon specifies for a particular

a)

nucleotide

b)

Enzyme

c)

Amino Acid

d)

Monomers

11.

A group of 3 bases is known as

a)

Anticodon

b)

Codon

c)

Organelle

d)

A strand

12.

Translation takes place in the

a)

Ribosome

b)

Nucleus

c)

Cytoplasm

d)

Mitochondria

13.

Transcription take place in the

a)

Cytoplasm

b)

Cell Membrane

c)

Nucleus

d)

Ribosome

14.

What is the process in which protein synthesis happens?

a)

DNA-->RNA--> Proteins

b)

DNA-->Proteins-->RNA

c)

Protein--->DNA--->RNA

d)

Protein Synthesis--> Transcription-->Translation

15.
What amino acid is represented by the codon UUA?
a)
Phenylalanine
b)
Tyrosine
c)
Leucine
d)
Stop codon
16.
Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand: 
GTAGTCA
a)
UATUAGA
b)
ACGACTG
c)
CAUCAGU
d)
CATCAGT
17.
The process to go from mRNA to a protein is called ____
a)
transcription
b)
rRNA
c)
replication
d)
translation
18.
Nucleotides are made up of a sugar, phosphate, and..?
a)
nitrogenous base
b)
nucleic acid
c)
cholesterol
d)
fatty acid
19.
DNA and RNA are macromolecules in the category of
a)
Proteins
b)
Lipids
c)
Nucleic Acids
d)
Carbohydrates
20.
The structure at #1 is called
a)
phosphate
b)
sugar
c)
base
d)
carbohydrate
21.
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
22.
#5 represents
a)
mRNA
b)
tRNA
c)
DNA
d)
proteins
23.
How many amino acids are coded for in the following sequence of mRNA nucleotides? 
CGAUACAGUAGC
a)
3
b)
4
c)
6
d)
12
24.
Cytosine and Thymine are
a)
pyrimidines
b)
phosphates
c)
purines 
d)
nucleic acids
25.
Which of the following would result in a frameshift mutation?
a)
Insertions only
b)
Substitution only
c)
Deletion only
d)
Insertions and Deletions
26.

The strands of DNA are held together by ____________.

a)

Hydrogen bonds

b)

Ionic bonds

c)

Covalent bonds

d)

metallic bonds

27.
Any change in the sequence of DNA is...
a)
transgenic shift
b)
Single Genotype
c)
Monohybrid Trait
d)
Mutation
28.
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

29.

What does tRNA do during translation?

a)

it brings a specific segment of DNA to the ribosome for transcription

b)

it brings any amino acid to the ribosome

c)

it brings a specific amino acid (decided by the DNA) to the ribosome for translation

d)

it brings a specific amino acid (decided by the codon) to the ribosome for translation

30.

Translate the following mRNA into the correct amino acid:

mRNA: CCU

(a)  

31.

Transcribe the following DNA into mRNA:

DNA: ___ ___ ___

mRNA: UGG CUA CCG

(a)  

32.

Translate the following mRNA into the correct amino acid:

mRNA: UGA

(a)  

33.
What holds the DNA bases together?
a)
Hydrogen bonds
b)
DNA bases
c)
Double Helix
d)
Paired bases
34.
In a strand of DNA, if it contains 20% of Thymine, then how much Guanine would be present?
a)
30%
b)
20%
c)
80%
d)
10%
35.
Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
36.

TRANSCRIBE this DNA sequence: TACGTTACT

a)

AUGCAAUGA

b)

ATGCAATGA

c)

AUGGATUGA

d)

TACGTTACT

37.

The mRNA codon UCU has the anti-codon _______.

a)

AGA

b)

UCU

c)

TGT

d)

UGU

38.

What is this molecule? What does it do?

a)

mRNA; carries the message from DNA to ribosome

b)

tRNA; transfers the amino acids to the polypeptide chain

c)

rRNA; reads the message from the mRNA

39.

What amino acid would GGA code for?

a)

glycine

b)

alanine

c)

arginine

d)

proline

40.
If a DNA strand reads ATT CGT CTA, what would the mRNA strand read?
a)
TAA GCA GAT
b)
CGA TGA GUT
c)
UAA GCA GAU
d)
TAA GCA GUT
41.

The table shows the genetic code.

Which mRNA could code for the sequence Met-Ser-Leu-Arg-Phe?

a)

AUG UCA UCG UGG UUU

b)

AUG UCC ACC AGA UUC

c)

AUG UCU CCC AGA UUU

d)

AUG UCG CUG AGG UUC

42.
How many amino acids are coded for by this sequence of nucleotides:
ATG GGA ACT CCA
a)
4
b)
2
c)
6
d)
12
43.
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
44.

Observe the amino acid sequence below.

Before: METHIONINE – VALINE – PROLINE – LYSINE – LEUCINE

After: METHIONINE – VALINE – PROLINE – SERINE – LEUCINE

What type of mutation is shown above?

a)

deletion

b)

insertion

c)

substitution

d)

frame shift

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