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DNA Review

Total questions: 36

Worksheet time: 54mins

Name
Class
Date
1.
The enzyme that unzips the DNA to prepare for replication
a)
helicase
b)
replicase
c)
polymerase
d)
synthase
2.
DNA replication results in two DNA molecules,
a)
each one with two original strands
b)
each one with two new strands
c)
each one with one new strand and one original strand
d)
one with two new strands and the other with two original strands
3.
Which of the following must happen first in order for DNA replication to occur?
a)
DNA polymerase binds to the leading strand
b)
DNA is unwound
c)
Hydrogen bonds form between bases
d)
chromosomes condense
4.
Which of the following is required for DNA replication to occur?
a)
DNA helicase
b)
DNA ligase
c)
DNA polymerase
d)
all of these
5.

Match the Following: Base Pairing Rule

a)

A

1.

T

b)

C

2.

G

c)

T

3.

A

d)

G

4.

C

6.

Match the following: Base Pairing Rule

a)

Adenine

1.

Thymine

b)

Cytosine

2.

Guanine

c)

Thymine

3.

Adenine

d)

Guanine

4.

Cytosine

7.

DNA replication is described as (a)   when new DNA is composed of one strand from the parent DNA and one strand that is newly synthesized.

8.

Match the following: Enzymes to Functions

a)

Helicase

1.

enzyme unzips DNA like a zipper, creating two single strands of DNA

b)

DNA Polymerase

2.

Builder enzyme that synthesizes new strands of DNA by adding DNA nucleotides

c)

Ligase

3.

Enzyme that joins or glues fragments of new DNA together

d)

Primase

4.

Enzyme that creates a starting point for DNA polymerase

9.

What is the complementary base pairing for the following sequence?

AATTGGCC

(a)  

10.

What is the complementary base pairing for the following sequence?

ATATCGCG

(a)  

11.

Enzyme that connects the DNA to the backbone (glues)

a)

Ligase

b)

Polymerase

c)

Helicase

d)

Primase

12.

Enzyme that breaks hydrogen bonds (unzips)

a)

Ligase

b)

Polymerase

c)

Primase

d)

Helicase

13.

Where does DNA replication occur?

(a)  

14.

After replication, each strand has ​ (a)   new strand(s) and ​ (b)   old strand(s).

Choose from the below words
one
two
zero
15.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
16.
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
17.
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
18.
DNA replication results in two DNA molecules,
a)
each one with two original strands
b)
each one with two new strands
c)
each one with one new strand and one original strand
d)
one with two new strands and the other with two original strands
19.

Which process is used to make mRNA from the DNA in the nucleus?

a)

transcription

b)

translation

c)

replication

20.
Which RNA bases would pair with TACGAA in transcription
a)
AUGCUU
b)
ATGCTT
c)
GCATCC
d)
GCAUCC
21.
How many amino acids are coded for by this sequence of nucleotides:
ATG GGA ACT CCA
a)
4
b)
2
c)
6
d)
12
22.
What is occurring in this picture?
a)
Translation
b)
Replication
c)
Translocation
d)
Transcription
23.

Transcribe the following DNA sequence into RNA:


AAT TAG GGC TCG

a)

AAT TAG GGC TCG

b)

TTA ATC CCG AGC

c)

UUA AUC CCG AGC

d)

TTU UTC CCG UGC

24.
Which of the following statements is true?
a)
DNA is single-stranded
b)
RNA is single-stranded
c)
DNA contains uracil
d)
RNA contains deoxyribose
25.
What is the difference between DNA and RNA in terms of bases?
a)
RNA contains uracil in place of thymine
b)
RNA contains uracil in place of adenine
c)
RNA contains uracil in place of guanine
d)
RNA contains uracil in place of  cytosine
26.
Amino acids are the building blocks of... 
a)
DNA
b)
RNA
c)
Atoms
d)
Proteins
27.

Which RNA carries the message from the DNA molecule out of the nucleus?

a)

mRNA

b)

rRNA

c)

tRNA

28.

Where does TRANSCRIPTION occur in EUKARYOTIC cells?

a)

Nucleus

b)

Ribosome

c)

Cytoplasm

d)

Mitochondria

29.

How many nucleotides equal make up a codon?

a)

1

b)

2

c)

3

d)

4

30.

WHERE does TRANSLATION occur?

a)

ribosome

b)

cytoplasm

c)

nucleus

d)

cell

31.

Which organelle makes proteins?

a)

ribosome

b)

nucleus

c)

mitochondria

d)

chloroplast

32.

Which type of RNA is the carrier of amino acids?

a)

mRNA

b)

rRNA

c)

tRNA

d)

DNA

33.

In RNA _______ matches with Adenine

a)

Uracil

b)

Guanine

c)

Cytosine

d)

Thymine

34.

Which amino acid matches with the following codon:

GAU

a)

GLU

b)

SER

c)

ASP

d)

ILE

35.

Which amino acid matches with the following codon:

CAC

a)

STOP

b)

HIS

c)

LYS

d)

ARG

36.

Use the mRNA below to select the correct amino acid sequence:

AUG-UCA-AAA-UAG

a)

MET-SER-LYS-STOP

b)

MET-THR-LYS-TYR

c)

LEU-SER-CYS-STOP

d)

ILE-LYS-SER-STOP