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DNA Structure, Replication & Protein Synthesis Review A/B

Total questions: 40

Worksheet time: 13mins

Name
Class
Date
1.

Which of the following statements is true of RNA?

a)

RNA is double Stranded

b)

RNA contains Uracil

c)

RNA contains deoxyribose sugar

d)

RNA is made by replication

2.

Which of the following do nucleic acids and proteins have in common?

a)

They are both made of amino acids

b)

Their structures consist of a sugar

c)

They are macromolecules

d)

They are made of 4 nitrogen bases

3.

DNA and RNA both... (click all that apply)

a)

are nucleic acids

b)

can be found in the nucleus

c)

consist of the nitrogen bases A, C, G and T

d)

are required molecules for protein synthesis

4.

Which statement best describes the process of transcription

a)

DNA is used as a template and copied into mRNA inside the ribosome

b)

mRNA codons are converted into amino acids inside the ribosome.

c)

DNA is used as a template and copied into mRNA inside the nucleus

d)

DNA is used as a template and copied into tRNA inside the nucleus

5.

What is the name of the sugar in DNA?

a)

Deoxyribose

b)

Ribose

c)

Glucose

d)

Sucrose

6.

What is the job of tRNA?

a)

carries DNA's message from the nucleus to the ribosome

b)

Matches its anti-codon to mRNA's codon in order to transfer/drop off an amino acid in the ribosome

c)

Matches its codon to mRNA's anti- codon in order to transfer/drop off an amino acid

7.

Replicate this strand of DNA: A T T G C A T

a)

A T T G C A T

b)

T A A C G T A

c)

U A A C G U A

d)

T U U C G T U

8.

Which of the following statements describes what is happening in the process shown in the figure?

a)

Molecules of RNA are forming chromosomes to ensure genetic variation in a species.

b)

Transcription of DNA to mRNA to make proteins.

c)

A molecule of mRNA is directly the production of tRNA.

d)

Replication of a molecule of DNA creating two identical copies.

9.

What is the correct sequence of molecules for protein synthesis?

a)

DNA --> mRNA --> Amino Acids --> Protein

b)

DNA --> tRNA --> Amino Acids --> Protein

c)

DNA --> Amino Acids --> Protein

d)

mRNA --> DNA --> Amino Acids --> Protein

10.

The basic building block of DNA and RNA is

a)

chromosomes

b)

nucleic acids

c)

gene

d)

nucleotides

11.

The 3 molecules that make up a nucleotide are...

a)

ribose sugar, phosphate and a nitrogen base

b)

deoxyribose sugar, phosphate and a nitrogen base

c)

deoxyribose sugar, phosphate and a nucleic acid

d)

ribose sugar, fatty acid and a nitrogen base

12.

In DNA the nitrogen bases are as follows:

a)

Adenine always bonds with Thymine; Cytosine always bonds with Guanine

b)

Adenine always bonds with Cytosine; Cytosine always bonds with Thymine

c)

Adenine always bonds with Uracil; Cytosine always bonds with Guanine

d)

Adenine always bonds with Thymine; Cytosine always bonds with Uracil

13.

During transcription, mRNA nitrogen bases will bond with DNA bases as followed:

a)

Adenine always bonds with Thymine; Cytosine always bonds with Guanine

b)

Adenine always bonds with Cytosine; Guanine always bonds with Thymine

c)

Adenine always bonds with Uracil; Cytosine always bonds with Guanine

d)

Adenine always bonds with Thymine; Cytosine always bonds with Uracil

14.

During Replication the enzyme that unzips the DNA strand to be copied is

a)

DNA Polymerase

b)

Helicase

c)

RNA Polymerase

d)

Helix

15.

Transcription occurs in what part of the cell?

a)

Ribosome

b)

Mitochondria

c)

Chlorplast

d)

Nucleus

16.

Translation occurs in what part of the cell?

a)

Ribosome

b)

Mitochondria

c)

Chlorplast

d)

Nucleus

17.

Use the codon wheel to convert the following DNA codons into amino acids:


TAC CGG TAA

a)

Methionine, Alanine

b)

Methionine, Alanine, STOP

c)

Methionine, Arginine, STOP

d)

Methionine, Aspartic Acid, STOP

18.

Transcribe the following DNA strand into mRNA:


ATT CTA GAC

a)

TAA GAT CTG

b)

UTT GTU CUG

c)

UAA GAU CUG

19.

What is the letter A pointing to?

a)

DNA

b)

Nucleus

c)

Ribosome

d)

Mitochondria

20.

What is the letter B pointing to?

a)

mRNA

b)

Nucleus

c)

Ribosome

d)

Mitochondria

21.

What is the letter C pointing to?

a)

DNA

b)

Nucleus

c)

Ribosome

d)

Mitochondria

22.

What is the letter G pointing to?

a)

mRNA

b)

Anti-codon

c)

tRNA

d)

Codon

23.

What is the letter E pointing to?

a)

mRNA

b)

Anti-codon

c)

tRNA

d)

Codon

24.

What is the letter D pointing to?

a)

mRNA

b)

protein

c)

tRNA

d)

amino acid

25.

In RNA the base T is replaced with

a)

U

b)

G

c)

C

d)

A

26.

What combines together to make a protein?

a)

Amino Acid

b)

RNA

c)

Ribosome

d)

DNA

27.

Carries the amino acid used to make a protein

a)

mRNA

b)

rRNA

c)

tRNA

28.

What do we call the shape a DNA molecule takes?

a)

double-stranded

b)

double helix

c)

sugar-phosphate backbone

d)

pentagon

29.
What is a codon?
a)
a sequence of 3 amino acids
b)
a sequence of three nitrogen bases
c)
a sequence of 3 enzymes
d)
a sequence of 3 proteins
30.
The DNA nucleotide is composed of three parts. Which two components make up the nucleotide backbone?
a)
ribose sugar and base
b)
ribose sugar and phosphate group
c)
nitrogen base and deoxyribose sugar
d)
deoxyribose sugar and phosphate group
31.
Which nucleotide is complementary to adenine?
a)
adenine
b)
thymine
c)
cytosine
d)
guanine
32.
Which of these is part of the description of protein?
a)
a folded chain of amino acids
b)
a folded chain of carbohydrates
c)
a branched chain of fatty acids
d)
a branched chain of nucleic acids
33.
How many amino acids can be represented by a single 3-base DNA sequence?
a)
1
b)
3
c)
6
d)
8
34.

What will be the complementary DNA sequence resulting from the following:

GAT-TAC-AGA-TTA-CAT?

a)

CTA-ATG-TCT-AAT-GTA

b)

GAU-UAG-UGA-UUA-GUT

c)

CUA-AUG-UCU-AAU-GUA

d)

CAT-ACA-TAC-ATA-TAG

35.
What will be the resulting mRNA from this DNA sequence:
GAT-TAC-AGA-TTA-CAT?
a)
CTA-ATG-TCT-AAT-GTA
b)
GAU-UAG-UGA-UUA-GUT
c)
CUA-AUG-UCU-AAU-GUA
d)
CAT-ACA-TAC-ATA-TAG
36.
In RNA, Uracil pairs with ______. 
a)
cytosine
b)
adenine
c)
guanine
d)
thymine
37.
DNA holds the code for
a)
lipids
b)
carbohydrates
c)
protein
d)
sugar
38.
What process is going on in this photo? 
a)
Transcription 
b)
Translation 
c)
Replication 
d)
All the above 
39.

What process is happening in the diagram?

a)

transcription

b)

translation

c)

dna replication

d)

mitosis

40.

What is the order for Protein Synthesis?

a)

Transcription -> Translation -> Protein

b)

Translation - > Transcription -> Protein

c)

Protein -> Transcription -> Translation

d)

Translation -> Protein -> Transcription

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