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Unit Exam 6 Review Final

Total questions: 61

Worksheet time: 40mins

Name
Class
Date
1.

What are the stages of the cell cycle?

a)

G1

b)

S

c)

G2

d)

Mitosis

2.

Select all stages of interphase:

a)

G1

b)

S

c)

G2

d)

Mitosis

3.

In which stage of the cell cycle does the cell duplicate its DNA?

a)

G1

b)

S

c)

G2

d)

Mitosis

4.

_____ is the uncontrolled growth of cells, often resulting in a tumor or mass of abnormal cells

a)

Cancer

b)

Apoptosis

c)

Radiation

5.

Which phase of the cell cycle is represented in the diagram?

a)

Prophase

b)

Interphase

c)

Anaphase

d)

Telophase

6.
What phase is this cell in?
a)
Mitosis
b)
Interphase
c)
Prophase
d)
Telophase
7.
a)
Cytokinesis
b)
Interphase
c)
Anaphase
d)
Metaphase
8.

Which phase of the cell cycle is represented in the diagram?

a)

Anaphase

b)

Cytokinesis

c)

Telophase

d)

Metaphase

9.

Which phase of the cell cycle is represented in the diagram?

a)

Cytokinesis

b)

Anaphase

c)

Telophase

d)

Prophase

10.

The nuclear membrane/envelope is....

a)

the layer covering the nucleus

b)

the layer covering the cell

c)

the layer covering the cell wall

d)

the layer covering the centrosomes

11.

Which phase of the cell cycle shows two Nuclear membranes forming around chromosomes?

a)

Anaphase

b)

Telophase

c)

Prophase

d)

Metaphase

12.
The phase in mitosis where chromosomes move away and are pulled apart by spindles to opposite sides of the cell.
a)
prophase
b)
anaphase
c)
metaphase
d)
telephase
13.
In mitosis, the two resulting cells are
a)
different from the starting cell and identical to each other.
b)
different from the starting cell and different from each other.
c)
identical to the starting cell and different from each other.
d)
identical to the starting cell and identical to each other.
14.

Fruit fly body cells have 8 chromosomes. After mitosis, you would expect each resulting fruit fly daughter cell to have -

a)
16 chromosomes.
b)
46 chromosomes.
c)
8 chromosomes.
d)
4 chromosomes.
15.

What is the longest stage of the cell cycle called?

a)

Cytokinesis

b)

Metaphase

c)

Interphase

d)

Prophase

16.
Put the following stages of mitosis in order: anaphase, prophase, metaphase, and telophase. 
a)
prophase, metaphase, telophase, anaphase
b)
prophase, anaphase, metaphase, telophase
c)
prophase, metaphase, anaphase, telophase
d)
prophase, telophase, metaphase, anaphase
17.
Put the following actions in order: DNA replicates, cell grows, cell divides, cell prepares for mitosis. 
a)
DNA replicates, cell grows, cell prepares for mitosis, cell divides
b)
cell grows, cell prepares for mitosis, DNA replicates, cell divides
c)
cell grows, DNA replicates, cell prepares for mitosis, cell divides
d)
DNA replicates, cell prepares for mitosis, cell grows, cell divides
18.
Before cells can divide, what must be copied?
a)
mitochondria
b)
cytoplasm
c)
DNA
d)
Cell Wall
19.

Humans have ________ pairs of chromosomes.

a)

21

b)

23

c)

46

d)

None of the above

20.
What happens in cytokinesis?
a)
The cell fully splits into two cells
b)
The cell digests its extra DNA
c)
The cell prepares for mitosis
d)
There are eight important checkpoints there
21.
Which of the following phases is not included in interphase?
a)
G1
b)
S
c)
G2
d)
M
22.
After mitosis and cytokineses, one cell becomes...
a)
Two identical cells
b)
Two genetically different cells
c)
Four identical cells
d)
Four genetically different cells
23.

Identical halves of a chromosome are called?

a)

Cousins

b)

Chromatids

c)

Centromere

d)

Centrosome

24.

Chromosomes are visible and spindle fibers start to appear

a)

prophase

b)

metaphase

c)

telophase

d)

anaphase

25.

After mitosis the number of chromosomes in the newly created cells will be:

a)

Half the number of the original cell

b)

The same number as the original cell

c)

Twice as much as the original cell

26.
What does DNA Replication mean?
a)
DNA is made.
b)
DNA makes new cells. 
c)
DNA copies itself.
d)
DNA starts the cell cycle.
27.

Select all stages of interphase?

a)

G1

b)

S

c)

G2

d)

Mitosis

28.

In which stage of the cell cycle does the cell grow in size?

a)

G1

b)

S

c)

G2

d)

Mitosis

29.

What are the "X" shaped things in the drawing.

a)

PMATs

b)

Chromosomes

c)

Ribosomes

d)

Telophase

30.

PMAT helps us remember the correct order of the phases of Mitosis. Which of the following has the phases of Mitosis in the correct Order

a)

Interphase, Mitosis, Cytokinesis

b)

Prophase, Metaphase, Anaphase, Prophase

c)

Anaphase, Telophase, Prophase, Telophase

d)

Prophase, Metaphase, Anaphase, Telophase

31.

What is the purpose of Mitosis?

a)

Growth of an organism and Repair of damaged tissue

b)

To help the body get rid of extra cells

c)

To increase the amount of classwork you have to do

d)

To get rid of the nucleus

32.
Cells spend 90% of their time in this stage of the cell cycle. This is the reason you would see most cells in this stage if viewed under a microscope.
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Interphase
33.

A chromosome is packaged

a)

DNA

b)

Protein

c)

Carbohydrates

d)

Lipids

34.

What is the image above:

a)

Chromosome

b)

Chromotid

c)

Centromere

d)

Centriole

35.

Which of the following is considered DNA in its normal, non dividing state, sometimes looks like spaghetti?

a)

Chromatin

b)

Chromatids

c)

Centromere

d)

Chromosome

e)

Centriole

36.

DNA that has been wound up into a tight pattern. Seen during Cell division.

a)

Chromatin

b)

Chromosome

c)

Centormere

d)

Centriole

37.

Each chromosome contains two identical _____.

a)

chromotids

b)

chromosomes

c)

first

d)

meiosis

e)

second

38.
The structures labeled B are
a)
centrioles
b)
chromatids
c)
centromeres
d)
chromopheres
39.

If there are 20 chromosomes in the nucleus at the start of the cell cycle, how many will there be in each new daughter cell after cytokinesis?

a)

20

b)

10

c)

40

d)

200

40.

The yellow curved lines in the image.

a)

chromosomes

b)

chromatids

c)

spindle fibers

d)

centrioles

41.

Poles at opposite ends of the cell that attach to spindle fibers.

a)

Chromatids

b)

Cell plate

c)

Chromosome

d)

Centrosomes/Centrioles

42.

After a chromosome replicates in the S phase, the 2 exact copies of DNA in a chromosome are attached to each other at the center. What are these two copies called?

a)

sister chromatids

b)

genes

c)

mutations

d)

homologous chromosomes

43.

How many chromosomes does a human body cell have, total?

a)

48

b)

46

c)

23

d)

47

44.

Chromosomes that are organized in pairs, are the same size, and have the same genes are called _______ chromosomes.

a)

homeostasis

b)

homologous

c)

matching

d)

sister

45.

Body cells that contain both sets of chromosomes (from both parents) are called _________.

a)

diploid

b)

haploid

c)

triploid

d)

polyploid

46.

The 23rd pair of chromosomes that contain the genes to determine the sex of an individual are called ___________.

a)

sex chromosomes

b)

autosomes

c)

homologous

d)

genes

47.

A photograph of the chromosomes in a dividing cell that are arranged by size is called a _________.

a)

mutation

b)

gene

c)

picture

d)

karyotype

48.

During Prophase, which structure(s) begins to disappear?

a)

Nuclear Envelope/Membrane

b)

Spindle Fibers

c)

Chromsomes

d)

Centrioles/Centrosomes

49.

During Prophase, which structure(s) first begin to appear?

a)

Nuclear Envelope/Membrane

b)

Spindle Fibers

c)

Chromsomes

d)

Chromatin

50.

During Telophase, which structure(s) begins to re-appear?

a)

Nuclear Envelope/Membrane

b)

Spindle Fibers

c)

Chromsomes

d)

Centrioles/Centrosomes

51.

What does the "S" in "S phase" stand for?

a)

Synthesis because you're making new DNA by replication

b)

Synthesis because you're making new DNA from nothing

c)

Stand-by because the cell is waiting

d)

None of the above

52.

At the beginning of the cell cycle, a normal human cell starts off with 46 chromosomes (23 pairs). At the end of the cycle (after mitosis), how many total chromosomes does each new cell have?

a)

46 (23 pairs)

b)

92 (46 pairs)

c)

23

53.

The following is a karyotype of a human. This karyotype shows 23 pairs of

a)

homologous chromosomes

b)

sister chromatids

c)

Chromatin

d)

All of the above

54.

The following is a karyotype of a human. What is the gender of the human?

a)

Male because there are two X chromosomes on the 23rd pair

b)

Female because there are two X chromosomes on the 23rd pair

c)

Male because there is both an X and Y chromosome on the 23rd pair

d)

Female because there is both an X and Y chromosome on the 23rd pair

55.

Viruses contain genetic material, either DNA or RNA

a)

FALSE

b)

TRUE

56.

Viruses can only reproduce by invading a host cell

a)

True

b)

False

57.
What is one way that a lysogenic infection differs from a lytic infection?
a)
A lysogenic virus does not act on bacteria as a lytic virus does.
b)
A lysogenic virus can remain in the host DNA for a longer period without becoming active.
c)
A lysogenic virus contains RNA instead of DNA.
d)
A lysogenic virus directs the production of new viruses right away.
58.
How do viruses reproduce?
a)
They copy their own genetic material inside a protein coat.
b)
They kill a cell and reproduce inside it.
c)
They invade a living cell and use the cell's functions to replicate their genetic material.
d)
They do not reproduce because they are not technically living things.
59.
The lytic cycle takes the longest out of the two viral reproductive cycles. 
a)
True
b)
False
60.
What is the lytic and lysogenic cycle have in common?
a)
The host cell dies
b)
The virus dies
c)
The virus inserts its genetic information into the host cell
d)
copies of the virus are immediately released from the host
61.
What process is this?
a)
phagocytosis
b)
lytic cycle
c)
lysogenic cycle
d)
formation of antibodies

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