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BIOLOGY - DNA REPLICATION

Total questions: 40

Worksheet time: 1hrs 20mins

Name
Class
Date
1.
The backbone of a DNA molecule is made of which two components?
a)
phosphate molecules and ribose sugars
b)
deoxyphosphate molecules and ribose sugars
c)
phosphate molecules and deoxyribose sugars
d)
deoxyphosphate molecules and deoxyribose sugars
2.
The process by which a DNA molecule is copied is called _____.
a)
binary fission
b)
mitosis
c)
replication
d)
translation
3.
Which sequence of DNA bases would pair with this partial strand of DNA: ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
4.
The genetic material of an organism is composed of
a)
lipids
b)
proteins
c)
Deoxyribonucleic acid
d)
complex carbohydrates
5.
DNA contains the code for constructing which molecules?
a)
proteins
b)
starches
c)
fats
d)
sugars
6.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
7.
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
8.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
9.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
10.
Name this structure
a)
amino acid
b)
nucelotide
c)
ATP
d)
Protein
11.
Nitrogenous bases in DNA are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
12.
Nucleotides are made up of a sugar, phosphate, and..?
a)
nitrogenous base
b)
nucleic acid
c)
cholesterol
d)
fatty acid
13.
Who discovered the "base pairing rules"?
a)
Watson & Crick
b)
Rosalind Franklin
c)
Erwin Chargaff
d)
Blob Fish
14.
Where does DNA replication take place?
a)
Nucleus
b)
Ribosome
c)
Cytoplasm
d)
Golgi Body
15.
Before the cell divides, what process needs to happen?
a)
Transcription
b)
Translation
c)
Replication
d)
Protein synthesis
16.
Which type(s) of cells contain DNA
a)
plant cells
b)
animal cells
c)
bacteria cells
d)
all cells
17.
Watson and Crick were the first to suggest that DNA is _____
a)
a short molecule
b)
the shape of a double helix
c)
a protein molecule
d)
the genetic material
18.
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
19.
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
20.
Which one of the following nitrogen bases would pair in a DNA molecule?
a)
adenine-guanine
b)
guanine-cytosine
c)
adenine-cytosine
d)
cytosine-uracil
21.
Replicate the following strand of DNA: 
AATCATGGA
a)
AATCATGGA
b)
TTAGTACCT
c)
UUAGUACCU
d)
GGATAUCUA
22.
order of replication
a)
3, 2, 1, 4
b)
2, 1, 4, 3
c)
2, 3, 1, 4
d)
3, 4, 1, 2
23.

The building blocks of DNA is

a)

Sugar

b)

Phosphate

c)

Nucleotide

d)

Muskrat

24.
What does DNA stand for?
a)
Deoxyribonucleic acid
b)
Denitrogenous acid
c)
Deribonucleic acid
d)
Diribonucleic acid
25.

Which organelle is the DNA found

a)

Nucleus

b)

Plasma Membrane

c)

Mitochondria

d)

Cytoplasm

26.

What is the Shape of DNA

a)

Single Helix

b)

Spring

c)

Double Helix

d)

A twist knot thing

27.

Which of the these bases are the Purines

a)
b)
c)
d)
28.

Which bases are the Pyrimidines

a)
b)
c)
d)
29.
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
30.

If there is 22% Cytosine, how much of all the other bases are there?

a)

22% C, 22% G, 28% A, and 28%T

b)

28% C, 28% G, 28% A, and 28%T

c)

22% C, 28% G, 22% A, and 28%T

d)

22% C, 22% G, 22% A, and 22%T

31.

If there is combined 60% for Cytosine and Guanine in a strand of DNA, what is the combined % for Adenine and Thymine in the same strand of DNA?

a)

60

b)

20

c)

40

d)

10

32.

What is the first step of DNA Replication?

a)

DNA Helicase unwinds the DNA strands

b)

RNA polymerase adds nucleotides

c)

DNA polymerase adds nucleotides

d)

DNA Helicase zips up/closes up DNA

33.

How many nucleotide bases are there?

a)

1

b)

2

c)

6

d)

4

34.

What is the DNA compliment of this sequence?

AGGCGA

a)

TCCGCT

b)

AGGCGA

c)

TCCTTA

35.

What is the DNA compliment of this sequence?

GCAATCA

a)

CGTTAGT

b)

CGAAATC

c)

CGTTTAG

36.

What is the DNA compliment of this sequence?

TAATCGGCCA

a)

ATTAGCCGGT

b)

ATTCGACGCT

c)

TAATCGGCCA

37.

Which letter pairs with - T

a)

C

b)

A

c)

G

38.

What is the DNA complement to the following strand?


ACT-TAG-CTA-GCG

(a)  

39.

What is the DNA complement to the following strand?


TGA-CAC-GCT-CAT

(a)  

40.

What is the mRNA complement to the following strand?


TTT-ATC-GAG-CGT

(a)  

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