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DNA Test REview

Total questions: 23

Worksheet time: 19mins

Name
Class
Date
1.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
2.
Which of the following units are repeatedly joined together to form a strand of DNA?
a)
amino acids
b)
nucleotides
c)
fatty acids
d)
polysaccharides
3.
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
4.
What are the 4 nitrogen bases in DNA?
a)
adenine, thymine, cytoplasm, and guanine
b)
adenine, thymine cytosine, and guanine
c)
adenine, thymine, cytosine, and gylcerol
d)
adenine, thymine, cytosine, and glucose
5.
Nucleotides are made up of a sugar, phosphate, and..?
a)
nitrogenous base
b)
nucleic acid
c)
cholesterol
d)
fatty acid
6.
What are the rungs (steps) of the DNA structure made up of?
a)
repeating phosphates and sugars
b)
nitrogen bases
c)
nucleotides
d)
adenine and thymine
7.
What are the backbones (sides) of the DNA structure made up of?
a)
repeating phosphates and sugars
b)
nitrogen bases
c)
nucleotides
d)
adenine and thymine
8.
In DNA, Adenine pairs with ___________. 
a)
Guanine
b)
Cytosine
c)
Thymine
d)
Uracil
9.
Where is DNA located in the cell? 
a)
Nucleous 
b)
Nucleoleus 
c)
Mitochondria 
d)
Cytoplasm 
10.
What preciptates the DNA?
a)
EDTA
b)
NaCl
c)
Ethanol
d)
Lysis Buffer
11.
What is the monomer of DNA? 
a)
Nucleus 
b)
Nucleotide 
c)
DNA
d)
Base pair 
12.
There are 3 hydrogen bonds between Cytosine and Guanine?
a)
True
b)
False
13.
There are 2 hydrogen bonds between Guanine and Cytosine?
a)
True 
b)
False
14.
What type of bond connects nitrogenous bases?
a)
Covalent bonds
b)
Hydrogen bonds
c)
Phospholipid bonds 
d)
Metallic bonds
15.
What type of bond connects the deoxyribose (sugar group) to the Phosphate group?
a)
Hydrogen
b)
Ionic
c)
Covalent 
d)
Mutual
16.

What is the second step of PCR?

a)

denaturation

b)

extension

c)

annealing

d)

termination

e)

splicing

17.

How many steps are there in PCR?

a)

3

b)

4

c)

2

d)

5

18.

What is the first step of PCR?

a)

termination

b)

denaturation

c)

annealing

d)

splicing

e)

extension

19.

Does PCR require a primer?

a)

Yes

b)

No

20.

What does PCR accomplish?

a)

determining the sequence of DNA

b)

develop proteins

c)

make copies of a DNA section

d)

make mRNA

21.

What is the denaturation step?

a)

mutating RNA polymerase

b)

Cooling DNA to allow primers to form

c)

separating DNA helix in a cold environment

d)

separating DNA helix with using heat

22.

What is the Annealing step?

a)

DNA is cooled to allow primers to form

b)

Heat is used to separate DNA strands

c)

DNA polymerase adds nucleotides to the 5' end

d)

Taq adds nucleotides to the 3' end

23.

What award did Kary Mullis win for inventing PCR?

a)

Nobel Peace Prize

b)

Nobel Prize in Physiology

c)

Nobel Prize in Chemistry

d)

Nobel Prize in Biology

e)

Nobel Prize in Medicine

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