NEW
Font size
S
M
L
XL
WorksheetsBiology Chapter
Total questions: 23
Worksheet time: 12mins
Name
Class
Date
1.
Which of the following is NOT a reason cells divide?
a)
The cell gets too big to process and transport nutrients.
b)
New cells are needed for growth.
c)
DNA cannot be copied quickly enough in large cells.
d)
Surface area-to-volume ratio becomes too large.
2.
The region of a chromosomes where two sister chromatids are held together is called a..
a)
Spindle
b)
Centrosomere
c)
nucleosomes
d)
centriole
3.
chromatids are..
a)
Dense patches within the nucleus.
b)
Bacterial chromosomes.
c)
Joined strands of duplicated genetic material.
d)
Prokaryotic nuclei.
4.
When a chromosome condenses,
a)
a histone wraps around chromatin
b)
beads form on the DNA double helix.
c)
its centromere splits.
d)
looped domains coil into a structure.
5.
In order to fit within a cell, DNA becomes more compact by
a)
breaking apart into separate genes.
b)
extending to form very long, thin molecules.
c)
wrapping tightly around histones.
d)
being enzymatically changed into a protein.
6.
The phase of the cell cycle that occupies most of an average cells life is
a)
G1
b)
G2
c)
S
d)
mitosis
7.
What occurs after cytokinesis is completed?
a)
The cell organizes its microtubules.
b)
The cell begins to replicate its DNA.
c)
The cell enters G1.
d)
The cell enters G2.
8.
Which of the following shows the correct sequence of the cell cycle?
a)
Cytokinesis, Mitosis, G1, S, G2
b)
S, G1, G2, mitosis, cytokinesis
c)
G1, S, G2, mitosis, cytokinesis
d)
mitosis, G1, S, G2, cytokinesis
9.
The synthesis (S) phase is charcterized by
a)
DNA replication.
b)
cell division.
c)
cytoplasm.
d)
replication of mitochondria.
10.
The first three phases of the cell cycle are collectively known as
a)
a gap
b)
telophase
c)
mitosis
d)
interphase
11.
Cell growth: G1 ::
a)
mitosis: cytokinesis
b)
mitosis: meiosis
c)
mitochondria replication: synthesis phase
d)
DNA copying: synthesis phase
12.
Mitosis is the process by which
a)
microtubules are assembled.
b)
cytoplasm is divided.
c)
the nucleus is divided into two nuclei.
13.
A spindle fiber is a specialized form of
a)
microtubule
b)
centriole
c)
chromosomes
d)
centrosomes
14.
The phase of mitosis that is characterized by the arrangement of all chromosomes along the equator of the cell is called
a)
telophase
b)
metaphase
c)
anaphase
d)
prophase
15.
As a result of mitosis, each of the two new cells produced from the parent cell during cytokinesis
a)
Receives a few chromosomes from the parent cell.
b)
Receives an exact copy of all the chromosomes present in the parent cell.
c)
donates a chromosomes to the parent cell.
d)
receives exactly half the chromsomes from the parent cell.
16.
Cytkinesis in plant cells involves the formation of
a)
a cell plate
b)
protein threads
c)
spindle fibers
d)
centrioles
17.
At the G2 checkpoint, DNA replication is checked by
a)
receptor proteins
b)
electron transport chains
c)
repair enzymes
d)
cell-surface
18.
Growth occurs through cell enlargement and cell______
a)
division
b)
G2
c)
mitosis
d)
gene
19.
A(n) _______ is a segment of a DNA molecule that codes for RNA and proteins.
a)
anaphase
b)
gene
c)
proteins
d)
G1
20.
A cells DNA is copied during the _______ phase.
a)
G1
b)
G2
c)
Gene
d)
Synthesis
21.
The spindle is assembled by the_______phase.
a)
G1
b)
G2
c)
S
d)
cell cycle
22.
In mitosis, anaphase follows_________
a)
G1
b)
Protiens
c)
Metaphase
d)
centrosome
23.
The spindle is assembled by the______
a)
mitosis
b)
cell growth
c)
G1
d)
Centrosome
Reset
