WorksheetsDNA, Replication, Cell Cycle & Mitosis Review
Total questions: 58
Worksheet time: 2hrs 12mins
Name
Class
Date
1.
The part of the cell cycle labeled "1" is
a)
interphase
b)
prophase
c)
metaphase
d)
G1
2.
The part of the cell cycle labeled "2" is
a)
interphase
b)
mitosis
c)
G1 phase
d)
S phase
3.
The part of the cell cycle labeled "3" is
a)
interphase
b)
mitosis
c)
G1 phase
d)
S phase
4.
The part of the cell cycle labeled "4" is
a)
cytokinesis
b)
mitosis
c)
G2 phase
d)
S phase
5.
The part of the cell cycle labeled "5" is
a)
cytokinesis
b)
mitosis
c)
G2 phase
d)
G1 phase
6.
The part of the cell cycle labeled "6" is
a)
cytokinesis
b)
mitosis
c)
M phase
d)
interphase
7.
The part of the cell cycle labeled "7" is
a)
cytokinesis
b)
mitosis
c)
M phase
d)
interphase
8.
The structure labeled "A" is
a)
2 chromosomes
b)
a chromosome
c)
sister chromatids
d)
the centromere
9.
The structure labeled "B" is
a)
2 chromosomes
b)
a chromosome
c)
sister chromatids
d)
the centromere
10.
The structure labeled "C" is
a)
2 chromosomes
b)
a chromosome
c)
sister chromatids
d)
the centromere
11.
Which statement is NOT true about cancer?
a)
A malfunctioning checkpoint in the cell cycle can result in cancer
b)
It can happen because of mutations in the DNA
c)
It only happens to older people because their DNA is more damaged
d)
It is the result of a cell dividing out of control
12.
Which is the best description of chromatids?
a)
Two separate but similar chromosomes
b)
Two identical copies of the NA being held together in a single chromosome
c)
The protein disk that holds a chromosome together
d)
The unorganized, string-like DNA in a non-dividing cells
13.
Which is the best description of a centromere?
a)
Two separate but similar chromosomes
b)
Two identical copies of the DNA being held together in a single chromosome
c)
The protein disk that holds a chromosome together
d)
The unorganized, string-like DNA in a non-dividing cell
14.
Which is the best description of chromatin?
a)
Two separate but similar chromosomes
b)
Two identical copies of the DNA being held together in a single chromosome
c)
The protein disk that holds a chromosome together
d)
The unorganized, string-like DNA in a non-dividing cell
15.
When does DNA replication happen?
a)
S phase
b)
before cell division
c)
during interphase
d)
all of these are correct
16.
The cytoplasm and organelles within it separating into two different cells is called
a)
cytokinesis
b)
mitosis
c)
M phase
d)
cell division
17.
The part of the cell cycle when a cell is not dividing is called
a)
DNA replication
b)
S phase
c)
interphase
d)
mitosis
18.
G1, S, and G2 phases are all part of
a)
DNA replication
b)
S phase
c)
interphase
d)
mitosis
19.
Binary fission is cell division performed by
a)
prokaryotic cells such as fungi
b)
prokaryotic cells such as bacteria
c)
eukaryotic cells such as plant cells
d)
eukaryotic cells such as animal cells
20.
Which statement best describes what is happening in the G1 and G2 phases of the cell cycle?
a)
the nuclear membrane is dissolving
b)
DNA replication
c)
the cell is growing and duplicating its organelles
d)
the chromosomes are lined up in the middle of the cell
21.
How is the cell cycle controlled?
a)
by mutations
b)
through the use of enzymes that unwind and unzip the DNA
c)
the cell does not have control over the cell cycle
d)
through the use of checkpoints that can start or stop the cycle
22.
The enzyme in DNA replication that brings new nucleotides to the newly forming DNA strand is
a)
DNA replicase
b)
nucleotidase
c)
DNA polymerase
d)
DNA helicase
23.
Step 1 in DNA replication breaks the
a)
nitrogen bonds
b)
hydrogen bonds
c)
sugar-phosphate bonds
d)
enzymes
24.
How many DNA molecules are there at the end of replication?
a)
1
b)
2
c)
4
d)
too many to count
25.
What are enzymes made of?
a)
nucleic acids
b)
nucleotides
c)
carbohydrates
d)
protein
26.
Which statement is true about enzymes?
a)
They can perform the same chemical reaction many times
b)
They speed up chemical reactions by lowering activation energy
c)
They are shape specific
d)
All of these are correct
27.
In this picture representing an enzymatic reaction, what is structure "A"?
a)
active site
b)
enzyme
c)
substrate
d)
products
28.
In this picture representing an enzymatic reaction, what is structure "B"?
a)
active site
b)
enzyme
c)
substrate
d)
products
29.
In this picture representing an enzymatic reaction, what is structure "C"?
a)
active site
b)
enzyme
c)
substrate
d)
products
30.
Which of these is the best description of a substrate?
a)
the specific shape of an enzyme
b)
a biological catalyst
c)
the amount of energy needed to start a chemical reaction
d)
the molecule that an enzyme changes in some way
31.
The ________ are in the center of the DNA ladder; the ___________ _________ are on the sides.
a)
sugars; nitrogen bases and phosphates
b)
phosphates; sugars and nitrogen bases
c)
nitrogen bases; sugar and phosphate
d)
hydrogen bonds; phosphates and nitrogen bases
32.
An organism's DNA contains 16% guanine. How much cytosine is in the same DNA?
a)
16%
b)
32%
c)
84%
d)
42%
33.
An organism's DNA contains 16% guanine. How much adenine is in the same DNA?
a)
16%
b)
32%
c)
68%
d)
34%
34.
A tree and a fungus have the same basic structure of their DNA. How are they so different?
a)
Larger organisms like trees have more than just 4 nitrogen bases
b)
The nitrogen bases in their DNA are arranged in different orders
c)
They have different sugar molecules in their DNA strands
d)
Only eukaryotes have DNA
35.
Which monomer is correctly paired with its polymer?
a)
carbohydrate: amino acid
b)
protein: monosaccharide
c)
lipid: sugar
d)
nucleic acids: nucleotide
36.
DNA is a type of which polymer?
a)
nucleic acids
b)
protein
c)
lipid
d)
carbohydrate
37.
DNA is which type of polymer?
a)
nucleic acids
b)
protein
c)
lipid
d)
carbohydrate
38.
Which part of a nucleotide stores genetic information?
a)
sugar
b)
phosphate
c)
nitrogen base
d)
hydrogen bond
39.
Cytosine always pairs with
a)
adenine
b)
thymine
c)
guanine
d)
cytosine
40.
Structure "A" is
a)
phosphate
b)
nitrogen base
c)
nucleotide
d)
deoxyribose sugar
41.
Structure "B" is
a)
phosphate
b)
nitrogen base
c)
nucleotide
d)
deoxyribose sugar
42.
Structure "C" is
a)
phosphate
b)
nitrogen base
c)
nucleotide
d)
deoxyribose sugar
43.
A nucleotide would include
a)
A only
b)
A and B
c)
A, B and C
d)
A and C
44.
The shape of a DNA molecule is described as
a)
a triple bonded ladder
b)
a single helix
c)
a double bonded ladder
d)
a double helix
45.
The cell in diagram "1" is in which stage of mitosis?
a)
interphase
b)
telophase
c)
anaphase
d)
prophase
46.
The cell in diagram "2" is in which stage of the cell cycle?
a)
interphase
b)
telophase
c)
anaphase
d)
prophase
47.
The cell in diagram "3" is in which stage of mitosis?
a)
interphase
b)
telophase
c)
anaphase
d)
prophase
48.
The cell in diagram "4" is in which stage of cell division?
a)
interphase
b)
G1
c)
telophase
d)
cytokinesis
49.
The cell in diagram "5" is in which stage of mitosis?
a)
metaphase
b)
anaphase
c)
telophase
d)
prophase
50.
The cell in diagram "6" is in which stage of mitosis?
a)
metaphase
b)
anaphase
c)
telophase
d)
prophase
51.
What is the correct order of these diagrams if they were representing a cell going through the cell cycle?
a)
3, 5, 6, 1, 4, 2
b)
3, 2, 6, 5, 1, 4
c)
2, 3, 6, 5, 1, 4
d)
2, 6, 3, 5, 4, 1
52.
Which stage of mitosis is described below:
- nuclear membrane is dissolving
- chromosomes appear
- centrioles appear
- nuclear membrane is dissolving
- chromosomes appear
- centrioles appear
a)
prophase
b)
metaphase
c)
telophase
d)
cytokinesis
53.
Which stage of mitosis is described below:
- 2 nuclear membranes are reforming
- chromosomes are disappearing
- spindle fibers are disappearing
- 2 nuclear membranes are reforming
- chromosomes are disappearing
- spindle fibers are disappearing
a)
prophase
b)
metaphase
c)
telophase
d)
cytokinesis
54.
Which stage of mitosis is described below:
- spindle fibers are pulling chromosomes apart
- chromosomes are moving towards opposite ends of the cell
- spindle fibers are pulling chromosomes apart
- chromosomes are moving towards opposite ends of the cell
a)
prophase
b)
metaphase
c)
telophase
d)
anaphase
55.
Which stage of mitosis is described below:
- spindle fibers attaching to the centromeres of chromosomes
- chromosomes are lining up in the center of the cell
- spindle fibers attaching to the centromeres of chromosomes
- chromosomes are lining up in the center of the cell
a)
prophase
b)
metaphase
c)
telophase
d)
anaphase
56.
Which stage of the mitotic phase is described below:
- the organelles are pulled to opposite ends of the dividing cell
- the cytoplasm pinches in half, forming 2 separate cells
- the organelles are pulled to opposite ends of the dividing cell
- the cytoplasm pinches in half, forming 2 separate cells
a)
interphase
b)
cytokinesis
c)
telophase
d)
anaphase
57.
How many cells are formed as the result of the mitosis phase of the cell cycle?
a)
1
b)
2
c)
3
d)
4
58.
Mitosis makes
a)
genetically identical copies of the cell that enters mitosis
b)
cells with the same number of chromosomes as the original cell
c)
cells used for growth and repair
d)
all of these answers are correct
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