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WorksheetsCell Replication and Mutations End of Course Exam Preparation
Total questions: 23
Worksheet time: 21mins
Name
Class
Date
1.
What is the structure of DNA?
a)
Double Helix
b)
Single Helix
c)
Corkscrew
2.
What is the function of DNA Polymerase?
a)
It unzips the DNA
b)
It synthesizes nucleotides
c)
Provides the energy for the process
3.
What phase does DNA Replicaiton occur?
a)
Metaphase
b)
Prophase
c)
Anaphase
d)
Interphase
4.
What is the first step of DNA replication and what type of protein initiates this?
a)
Hydrogen bonds between nitrogenous bases are broken; DNA polymerase
b)
Hydrogen bonds between nitrogenous bases are broken; helicase
c)
The two DNA strands are separated and unwounded; helicase
d)
The two DNA strands are separated and unwounded; DNA polymerase II
5.
Cells of organism must replicate for ?
a)
growth
b)
repair of damaged cells
c)
replacement of dying cells.
d)
All of the above
6.
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
7.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
8.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
9.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose sugar and adenine
b)
deoxyribose sugar and a hydrogen bond
c)
deoxyribose sugar and the nucleus
d)
deoxyribose sugar and phosphate
10.
Nitrogenous bases are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
11.
The enzyme that unzips the DNA to prepare for replication
a)
helicase
b)
replicase
c)
polymerase
d)
synthase
12.
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
13.
If there is 17% thymine in a portion of DNA, how much cytosine is there?
a)
17%
b)
33%
c)
34%
d)
66%
14.
Which is NOT true about cancer cell division?
a)
Cancer cells cannot recognize checkpoints that tell them to stop replication
b)
Cancer cells need checkpoints that tell them to start replication
c)
Cancer cell DNA is NOT replicated correctly
15.
In RNA, Uracil pairs with ______.
a)
cytosine
b)
adenine
c)
guanine
d)
thymine
16.
The process to go from DNA to mRNA is _______
a)
translation
b)
transcription
c)
replication
17.
The process to go from mRNA to a protein is called ____
a)
transcription
b)
rRNA
c)
replication
d)
translation
18.
DNA holds the code for
a)
lipids
b)
carbohydrates
c)
protein
d)
sugar
19.
Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand:
GTAGTCA
GTAGTCA
a)
UATUAGA
b)
ACGACTG
c)
CAUCAGU
d)
CATCAGT
20.
The main function of tRNA is to...
a)
carry a message that, when translated, forms proteins
b)
form a portion of ribosomes
c)
string together complementary RNA and DNA strands
d)
bring amino acids from the cytoplasm to the ribosomes
21.
What is the location in the cell for translation?
a)
nucleus
b)
mitochondria
c)
ribosome
d)
chloroplast
22.
What is the three base sequence of mRNA that codes for a single amino acid?
a)
Anticodon
b)
Codon
c)
Protein
23.
Which is the mRNA molecule that would be transcribed from this DNA template:
TGGCAAGTACGT
TGGCAAGTACGT
a)
ACCGTTCATGCA
b)
UGGCAAGUACGU
c)
UCCGUUCUUGCU
d)
ACCGUUCAUGCA
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