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LE - Day 4 - Sem 1 Final Rev -Cell Cycle & Meiosis (2023))

Total questions: 55

Worksheet time: 54mins

Name
Class
Date
1.
Before cells can divide, what must be copied?
a)
mitochondria
b)
cytoplasm
c)
DNA
d)
Cell Wall
2.
The division of the nucleus is known as:
a)
Synthesis
b)
Mitosis
c)
G1
d)
G2
3.
The cell spends most of it's life in ________________.
a)
mitosis
b)
cytokinesis
c)
Interphase
d)
None of the above
4.
In the S stage of interphase_______________
a)
the cell grows
b)
the nucleus divides
c)
the cell membrane divides
d)
the DNA is replicated
5.
When a plant cell goes through cell division,  _____________.
a)
the 2 new nuclei are separated by the cell membrane pinching off.
b)
4 new cells are formed
c)
a cell plate forms, dividing the 2 new nuclei
d)
None of the above
6.
When an animal cell goes through cytokinesis,__________
a)
a cell plate forms dividing the 2 new nuclei.
b)
the cell membrane pinches off the 2 new cells.
c)
4 new cells are formed.
d)
None of the above
7.
A human cell has 46 chromosomes before mitotic division.  How many chromosomes will the daughter cells after mitosis.
a)
12
b)
23
c)
46
d)
92
8.
Cells of organism must replicate for ?
a)
growth
b)
repair of damaged cells
c)
replacement of dying cells.
d)
All of the above
9.
Name the phase:
a)
Anaphase
b)
Telophase
c)
Metaphase
d)
Prophase
10.
Name the phase:
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
11.
Name the phase:
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
12.
Name the phase:
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
13.
The stages of mitosis in order
a)
Metaphase, Anaphase, Prophase, Telophase
b)
Prophase, Anaphase, Metaphase, Telophase
c)
Prophase, Metaphase, Anaphase, Telophase
d)
Anaphase, Prophase, Telophase, Metaphase
14.
The structure labeled A is a(n)
a)
chromatid
b)
centriole
c)
centromere
d)
chromophere
15.
The structures labeled B are
a)
centrioles
b)
chromatids
c)
centromeres
d)
chromopheres
16.
The chromosome in the diagram 
a)
has been replilcated
b)
consists of 2 copies of 1 chromosome
c)
is about to go through cell division
d)
all of the above.
17.
Interphase contains three stages, including the G1 and G2 stages.  Which of the following occurs during these gap stages? 
a)
separation of chromosomes
b)
cellular growth 
c)
DNA replication
d)
viral transformation 
18.
If a fruit fly has 8 chromosomes in each of its body cells, how many chromosomes will be in each daughter cell after mitosis? 
a)
2
b)
4
c)
8
d)
16
19.

What is the division of cytoplasm called?

a)

chromosome

b)

mitosis

c)

cytokinesis

d)

the cell cycle

20.

During cytokinesis in plant cells...

a)

the cell wall breaks.

b)

a cell plate forms, and the cell splits in two.

c)

a cell plate forms inside the two new cells.

d)

the cell loses some of its DNA.

21.
Mitosis results in the formation of...
a)
Two identical cells with all of the original chromosomes
b)
Two different cells with half of the original chromosomes
c)
Four identical cells with all of the original chromosomes
d)
Four different cells with half of the original chromosomes
22.
Why don't cells just stretch when you grow, instead of making copies of themselves?
a)
The muscles in the cells can't stretch that far.
b)
The cell won't be able to bring in food fast enough or get waste out fast enough.
c)
The cell membrane doesn't like the feeling of stretching.
d)
The lysosomes don't want to work so hard.
23.
The following describes __________ during mitosis. The chromatin condenses and spindle fibers form at each side of the cell. The nuclear membrane breaks apart.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
24.
The following describes ________  during mitosis. The chromosomes line up along the center of the cell and the spindle fibers attach to each chromosome at the centromere.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
25.
The following describes _________ during mitosis. The spindle fiber splits the centromere and the chromatids move to opposite sides of the cell.
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
26.

What occurs at the checkpoint in G1?

a)

Ensure the cell has grown large enough & the original DNA is undamaged

b)

Ensure the DNA has replicated properly and is undamaged

c)

Ensure the cell has grown large enough and has duplicated the organelles

d)

Ensure the cell is still able to carry out normal functions

27.

What can occur to an organism if the cell cycle is not regulated properly?

a)

The organism will require more food energy because of the cell growth will increase

b)

The cell cycle will proceed faster and create more cells causing it to grow faster

c)

Some cells will go through apoptosis but nothing will change for the organism

d)

Cancer can be caused and non-functioning cells can be produced

28.

What is the result of cells going through Mitosis?

a)

2 genetically identical daughter cells - Diploid Somatic Cells

b)

2 genetically unique daughter cells - Haploid Somatic Cells

c)

1 genetically unique cell - Diploid Somatic Cell

d)

2 Genetically identical daughter cells - Diploid Gamete Cells

29.

What would be the outcome for an organism if its cells cannot grow and divide properly?

a)

It will die because specialized & functioning cells are not being replaced

b)

Nothing, it will continue to live and reproduce as normal

c)

It will slow down because its cells will be old

d)

It will get smaller because no new cells are being made to grow

30.

Cancer is...

a)

Uncontrolled cell growth

b)

Normal cell growth

c)

A protein

d)

A cell cycle regulator

31.

What is Apoptosis?

a)

A tumor

b)

A protein

c)

Programmed cell death

d)

Cell cycle checkpoints

32.

Why is it necessary for the cell cycle to have regulation (checkpoints)?

a)

To ensure the cell functions properly before division

b)

To ensure that the old cell is still functional

c)

To ensure that the new cell is functional after division

d)

So that the DNA unfolds properly

33.

Which parts of interphase contain checkpoints? Choose all that apply.

a)

G1

b)

S

c)

G2

d)

Prophase

34.

What occurs at the checkpoint in G2?

a)

Ensure the cell has grown large enough & the original DNA is undamaged

b)

Ensure the DNA has replicated properly and is undamaged

c)

Ensure the cell has grown large enough and has duplicated the organelles

d)

Ensure the cell is still able to carry out normal functions

35.

All human have _________ chromosomes

a)

23

b)

46

c)

Diploid

d)

Haploid

36.

A 2n cell of a bat has 44 chromosomes, how many chromosomes will you find in one of his gametes

a)

23

b)

22

c)

44

d)

88

37.

Squirrels have 40 chromosomes in its diploid cells. How many chromosomes will you find in their egg cells

a)

40

b)

23

c)

20

d)

Not enough information to answer the question

38.
Are the cells in Mitosis identical or unique?
a)
Identical 
b)
Unique
c)
It's random
39.
Which stages show is most responsible for the variation caused by independent assortment
a)
A
b)
D
c)
H
d)
J
40.

Which of the following contributes to genetic variation in sexually reproducing species?

a)

crossing over, internal fertilization, independent assortment

b)

independent assortment, spindle formation, random fertilization

c)

random fertilization, DNA synthesis, independent assortment

d)

random fertilization, independent assortment, crossing over

e)

internal fertilization, spindle formation, crossing over

41.

If a somatic cell has 24 chromosomes, how many will it have at the end of meiosis?

a)

24

b)

12

c)

6

d)

the number varies per species

42.
When does crossing over occur?
a)
Interphase
b)
Prophase 1
c)
Prophase 2
d)
Metaphase 1
43.
Meiosis results in ______.
a)
4 genetically distinct haploid gametes
b)
2 genetically distinct cells
c)
2 genetically identical cells
d)
4 genetically identical cells
44.
The chromosomes that pair up during meiosis, are called __________ chromosomes.  
a)
homozygous 
b)
asexual
c)
homologous
d)
genes
45.
The purpose of meiosis is to form ________ cells.
a)
body
b)
sex
c)
somatic
d)
brain
46.
Crossing over helps promote 
a)
male genotype
b)
genetic variation
c)
DNA replication
d)
mitosis
47.
At fertilization the male and female sex cells will provide...
a)
Double of their chromosomes each
b)
One/third of their chromosomes each
c)
All of their chromosomes each
d)
Half of their chromosomes each
48.
What phase is  shown in the picture?
a)
anaphase 1
b)
anaphase 2
c)
metaphase 1
d)
telophase 1
49.
The two ways to increase genetic variation during meiosis are crossing over and _____
a)
Synapsis
b)
Tetrad
c)
Independent assortment
d)
Gameiosis
50.
During meiosis I, what happens? 
a)
Sister chromatids are split
b)
Homologous chromosomes are split
c)
Four cells are created
d)
None of the other choices are correct
51.
How many cells are created during Telophase II?
a)
1
b)
2
c)
3
d)
4
52.
Crossing over is important because....
a)
It prevents mutations from entering the gametes. 
b)
It allows for even distribution of chromosomes in the gametes.
c)
It allows for more genetic diversity of gametes.
d)
It allows for genetic uniformity of gametes. 
53.
A haploid cell has 
a)
one-half of a set of chromosomes
b)
one set of chromosomes
c)
two sets of chromosomes
d)
four sets of chromosomes
54.
Which of the following best describes meiosis?
a)
It is carried out in all tissues theat require cell replacement
b)
It occurs only in cells in the reproductive structures of an organism
c)
It happens in all of the tissues except the brain and spinal cord
d)
It is the first stage of mitosis
55.
Human eggs and sperm are _____, and each has ____ chromosomes.
a)
diploid, 23
b)
diploid, 46
c)
haploid, 23
d)
haploid, 46

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