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DNA Introduction, Replication, Transcription, and Translation

Total questions: 55

Worksheet time: 2hrs 50mins

Name
Class
Date
1.

What base pairs with adenine?

a)

phosphate

b)

guanine

c)

cytosine

d)

thymine

2.

What base pairs with thymine?

a)

adenine

b)

guanine

c)

cytosine

d)

limousine

3.

What base pairs with guanine?

a)

cytosine

b)

guanine

c)

thymine

d)

sugar

4.

What base pairs with cytosine?

a)

guanine

b)

adenine

c)

thymine

d)

magazine

5.

If a DNA sequence it GAATGCCT, what are the matching base pairs?

a)

ACGTACCTG

b)

AEIOU and sometimes Y

c)

CTTACGGA

d)

GCCTATGC

6.
A nucleotide is made up of three parts:  which of these is not one of those parts?
a)
sugar
b)
phosphate
c)
amino acids
d)
base
7.
A strand of DNA that looks like a twisted ladder is called a _____________________
a)
triple twist
b)
corkscrew
c)
double helix
d)
chain reaction
8.
__________________ is a change in the nucleotide base sequence of DNA.
a)
switch
b)
eraser
c)
creation
d)
mutation
9.
What does DNA stand for?
a)
Deoxyribose Nucleic Acid
b)
Denatured Natural Acid
c)
Do Not Accept
d)
I Don't Know
10.
The sequence of bases forms the
a)
Genetic Code
b)
DNA base pair
c)
Double Helix
d)
Paired bases
11.
What holds the DNA bases together?
a)
Hydrogen bonds
b)
DNA bases
c)
Double Helix
d)
Paired bases
12.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
13.
What are the 4 nitrogen bases?
a)
adenine, thymine, cytoplasm, and guanine
b)
adenine, thymine cytosine, and guanine
c)
adenine, thymine, cytosine, and gylcerol
d)
adenine, thymine, cytosine, and glucose
14.
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
15.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
16.
Which 2 molecules forms the sides (backbone) of the DNA ladder?
a)
deoxyribose and adenine
b)
deoxyribose and a hydrogen bond
c)
sugar and the nucleus
d)
deoxyribose (sugar) and phosphate
17.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
18.
What determines the code, or information, of a DNA molecule?
a)
the shape (structure) of the nitrogen bases
b)
the order (sequence) of the nitrogen bases
c)
the color of the nitrogen bases
d)
the frequency (number) of nitrogen bases
19.
Which two scientists are accredited with correctly deducing the double helix model of DNA?
a)
Watson and Crick
b)
Wilkins and Franklin
c)
Wilkins and Crick
d)
Watson and Franklin
20.
The two strands of a DNA molecule are held together by ________ bonds between their base pairs.
a)
covalent
b)
hydrogen
c)
ionic
d)
peptide
21.
Which of the following is not a base found in DNA?
a)
adenine
b)
thymine
c)
cytosine
d)
uracil
22.
If a segment of double-stranded DNA has 40 percent A, how much of it is C?
a)
40
b)
10
c)
15
d)
20
23.
If one strand of DNA has the sequence TTACCG, the sequence of the other strand of the same molecule will be
a)
AATGGC
b)
TTACCG
c)
AACGGC
d)
AATGGG
24.
Once replication in a DNA molecule is complete, each new DNA molecule contains 
a)
two new strands.
b)
3 exact copies of strands.
c)
one new strand and one old.
d)
two old strands.
25.
Which enzyme copies DNA?
a)
DNA polymerase
b)
DNA helicase
c)
RNA polymerase
d)
RNA helicase
26.
What does mRNA do?
a)
provides information from DNA to ribosomes
b)
transfers amino acids to the ribosomes
c)
makes up ribosomes
d)
builds proteins
27.
What does tRNA do?
a)
provides information from DNA to ribosomes
b)
transfers amino acids to the ribosomes
c)
makes up ribosomes
d)
builds proteins
28.
What does rRNA do?
a)
provides information from DNA to ribosomes
b)
transfers amino acids to the ribosomes
c)
makes up ribosomes
d)
builds proteins
29.
What is the process that copies information from DNA into RNA?
a)
protein synthesis
b)
transcription
c)
translation
d)
DNA Polymerase
30.

If a strand of DNA had bases in the following order - ATCCGTC, what would be the replicated complementary strand?

a)

UAGGCAG

b)

ATCCGTC

c)

TAGGCAG

d)

TUGGCTG

31.

If a strand of DNA had bases in the following order - ATCCGTC, what would be the transcribed mRNA sequence?

a)

TAGGCAG

b)

UAGGCAG

c)

TUGGCUG

d)

None of the above are correct

32.

Which of the following base pairs with adenine in RNA?

a)

thymine

b)

guanine

c)

uracil

d)

cytosine

33.

A section of DNA contains the following bases in this order: GAT CCT

Which of the following mRNA sequences complements this section of DNA?

a)

CUA GGA

b)

TCG AAG

c)

CTA GGA

d)

AGC UUC

34.

A sequence of a DNA template strand is shown.


3' TCC AAT GGC TTA TTT 5'


Which of these is the correct amino acid chain produced from the DNA template strand?

a)

Arginine, Leucine, Proline, Asparagine

b)

Tryptophan, Phenylalanine, Leucine

c)

Serince, Leucine, Proline, Asparagine

d)

Tryptophan, Phenylalanine, Leucine, Glycine

35.

Starts with 1 strand of DNA and creates 1 strand mRNA.

a)

replication

b)

transcription

c)

translation

d)

None of the above

36.

Uses the enzyme helicase to break hydrogen bonds between the 2 strands of DNA.

a)

replication

b)

transcription

c)

translation

37.

Starts with 1 strand of DNA and creates 1 strand mRNA.

a)

replication

b)

transcription

c)

translation

38.

Begins when the start codon "AUG" is read.

a)

replication

b)

transcription

c)

translation

39.

WHERE in the cell does replication occur?

a)

ribosome

b)

cytoplasm

c)

nucleus

d)

cell membrane

40.

WHAT does transcription produce?

a)

DNA

b)

RNA

c)

proteins

d)

amino acids

41.

WHAT does translation produce?

a)

proteins

b)

DNA

c)

RNA

d)

carbohydrates

42.

WHERE in the cell does translation occur?

a)

nucleus

b)

cell membrane

c)

golgi apparatus

d)

cytoplasm

43.

When using your codon chart, what sequence can you use to find the correct amino acid?

a)

DNA

b)

mRNA

c)

tRNA

d)

Any of these will do

44.

How many nucleotides make up a codon?

a)

1

b)

3

c)

5

d)

15

45.

How many codons: AAU GCG AUG

a)

9

b)

1

c)

3

d)

15

46.

How many nucleotides? AAU GCG AUG

a)

9

b)

3

c)

1

d)

15

47.
ATCAGTGAT A codon is a sequence of three nucleotides that code for an amino acid. If the DNA sequence shown here goes through transcription and translation, how many amino acids will result from this sequence?
a)
5
b)
4
c)
2
d)
3
48.
What process is going on in this photo? 
a)
Transcription 
b)
Translation 
c)
Replication 
d)
All the above 
49.

What is the order for Protein Synthesis?

a)

Transcription -> Translation -> Protein

b)

Translation - > Transcription -> Protein

c)

Protein -> Transcription -> Translation

d)

Translation -> Protein -> Transcription

50.
tRNA is involved in
a)
carrying amino acids 
b)
carrying ribosomes
c)
carrying glucose
d)
carrying lipids
51.
Which Seq could be found in RNA?
a)
ACCTGT
b)
CGCATT
c)
AUGCUU
52.
The codon CCU codes for what amino acid?
a)
Isoleucine
b)
Stop
c)
Methionine
d)
Proline
53.
Which amino acid pairs with the codon AGA
a)
Thr
b)
Arg
c)
Ala
d)
Glu
54.
I am single stranded.
a)
DNA
b)
RNA
c)
Both DNA and RNA
55.
I am a nucleic acid.
a)
DNA
b)
RNA
c)
Both DNA and RNA

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