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Chromosomes and Cell Cycle

Total questions: 47

Worksheet time: 38mins

Name
Class
Date
1.
The cell cycle is ______________.
a)
the process of cells circling throughout the body
b)
the process of splitting the organelles
c)
a process where one cell gets energy
d)
the sequence of stages of growth and division that a cell undergoes
2.
During interphase the cell ___________.
a)
divides into two cells
b)
divides its nucleus
c)
replicates its DNA
d)
replicates the organelles within the cell
3.
What does DNA stand for?
a)
DeNatured Acid
b)
DomiNant Acid
c)
DeoxyriboNucleic Acid
d)
DiriboNucleic Acid
4.
Replication is when __________.
a)
the cell makes a copy of its DNA in nucleus 
b)
the cell forms 2 identical cells
c)
the cell produces 2 sets of organelles
d)
the cell continues to complete the same function
5.
Mitosis is made up of how many phases?
a)
4
b)
5
c)
6
d)
7
6.
The cells produced via meiosis are called:
a)
sex cells
b)
somatic cells
c)
body cells
d)
skin cells
7.
A human usually has xx amount of chromosomes.
a)
6
b)
22
c)
4
d)
46
8.
What is it called when a sperm and egg meet?
a)
meiosis
b)
fertilization
c)
cell division
d)
mitosis
9.
Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.
a)
23, 46
b)
46, 23
c)
2, 4
d)
50, 100
10.

Gametes must be haploid because —

a)

the gametes’ chromosomes will be replicated prior to cell division

b)

two gametes will unite during fertilization to create a diploid cell

c)

fertilization results with a haploid zygote

d)

gametes are small and can hold only the haploid number of chromosomes

11.
The division of the nucleus is known as:
a)
Synthesis
b)
Mitosis
c)
G1
d)
G2
12.

the division of the cytoplasm is called

a)

mitosis

b)

interphase

c)

cytokinesis

d)

somatic

13.
Cytokinesis is the creation of two identical cells called _____.
a)
children cells
b)
new cells
c)
daughter cells
d)
son cells
14.

Chromosomes are made up of two identical sister _____________.

a)

chloroplasts

b)

nuclei

c)

chromatids

d)

genes

15.
Which part of the Cell Cycle takes the longest?
a)
Interphase
b)
Mitosis
c)
Prophase
d)
Cytokinesis
16.
The ___________ holds the replicated sister chromatids together.
a)
centriole
b)
chromosomes
c)
centromere
d)
cycles
17.
When DNA is in its less coiled, "relaxed," state, between cell divisions, it is called
a)
autosomes
b)
chromatid
c)
chromatin
d)
centromere
18.

Each chromosome contains two identical _____.

a)

chromotids

b)

chromosomes

c)

first

d)

meiosis

e)

second

19.

What is apoptosis?

a)

programmed cell death

b)

cell growth

c)

division of DNA

20.
During the ___ phase, DNA is replicated.
a)
G1
b)
S
c)
G2
d)
M
21.

The last of the Three MAIN parts of the Cell Cycle. This is the final step when the stretched-out cell officially splits into two new, identical cells. (The cytoplasmic division bringing about the separation into two daughter cells.)

a)

Cytokinesis

b)

Mitosis

c)

Interphase

22.

What is the purpose the the cell cycle checkpoints?

a)

To repair damaged cells before they enter cell division.

b)

To remove damaged cells from an organism.

23.

How many cell cycle checkpoints are there?

a)

1

b)

2

c)

3

d)

4

24.

When is apoptosis initiated?

a)

When DNA damage is repaired.

b)

When cells are removed from the cell cycle.

c)

When DNA damage cannot be repaired.

25.
This is the cell cycle checkpoint that makes sure DNA has been replicated correctly during S phase.
a)
G1 Checkpoint
b)
G2 Checkpoint
c)
M Checkpoint
d)
I Checkpoint
26.
This is the cell cycle checkpoint that makes sure the correct number of chromosomes are present and attached to microtubules.
a)
G1 Checkpoint
b)
G2 Checkpoint
c)
M Checkpoint
d)
I Checkpoint
27.

Name the 3 checkpoints of the cell cycle

a)

Anaphase checkpoint, mitosis/metaphase checkpoint, and telophase checkpoint

b)

Interphase checkpoint, S phase checkpoint, and M phase checkpoint

c)

G1 checkpoint, G2 checkpoint, and S phase checkpoint

d)

G1 checkpoint, G2 checkpoint, and mitosis/metaphase checkpoint

28.
Neuron cells, like the one pictured, rarely replicate. Therefore, we consider them to be in the _____ phase.
a)

G0

b)
G1
c)
S
d)

M

29.
Which of the following phases is not included in interphase?
a)
G1
b)
S
c)
G2
d)
M
30.

Why is the Cell Cycle often represented as a circle?

a)

Because it is easy to draw

b)

Because the cell cycle has a distinct beginning and end point

c)

to highlight the checkpoints

d)

to show that it repeats over and over

31.

What part of the cell cycle is considered interphase? Select all that apply.

a)

G1

b)

G2

c)

S

d)

M

32.
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.
33.
Cells of organism must replicate for ?
a)
growth
b)
repair of damaged cells
c)
replacement of dying cells.
d)
All of the above
34.
If there are 30 chromosomes in the blood cells, how many chromosomes will be in the bone cells? 
a)
15
b)
60
c)
30
d)
120
35.
The time between cell divisions in the life cycle of the cell is called
a)
anaphase
b)
interphase
c)
prophase
d)
metaphase
36.
Cancer is
a)
a premature stop in the cell cycle.
b)
uncontrolled mitosis.
c)
programmed cell death.
37.

A mutation is defined as:

a)

A change in the cell's structure

b)

Anything that changes in an embryo

c)

Any change in the physical features of a human

d)

A change in the DNA sequence

38.
What causes mutations?
a)
Mistakes in replication or environmental substances
b)
The amino acids
c)
Passed down by genetics
d)
It's how your born
39.
What does DNA Replication mean?
a)
DNA is made.
b)
DNA makes new cells. 
c)
DNA copies itself.
d)
DNA starts the cell cycle.
40.

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

41.
A Goat has 60 chromosomes in its body cells.  What is the haploid number?
a)
60
b)
30
c)
100
d)
120
42.

What is the pair of sex chromosomes in females?

a)

Y

b)

X

c)

XY

d)

XX

43.

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

44.

contain homologous chromosomes

a)

Haploid

b)

Diploid

45.

two sets of chromosomes

a)

haploid

b)

diploid

46.

somatic cells

a)

haploid

b)

diploid

47.

N (1N) number of chromosomes

a)

diploid

b)

haploid

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