BSC 1010 Chapter Notes - Chapter 8: Cleavage Furrow, Cell Plate, Complementary Dna

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Published on 3 Jul 2019
School
FIU
Department
Biological Science
Course
BSC 1010
Professor
BSC 1010
Chapter Eight
Review Questions
1.
After replication, in eukaryotes, the original
chromosome and its replicated copy together
is called the __________.
sister chromatid
2.
Apoptosis ________.
A. is a process that repairs damaged DNA.
B. increases the number of gamete cells.
C. can be used to remove damaged or
malfunctioning cells.
D. increases the number of somatic cells.
E. increases the number of gamete cells.
C. can be used to remove damaged or
malfunctioning cells.
3.
Before any cell divides into two daughter cells,
it must first duplicate its __________.
entire genome.
4.
Cancer occurs when __________.
the regulation of the cell cycle is lost
and uncontrolled cell division occurs.
5.
Chromosomes first become visible during
__________.
prophase.
6.
The Complementary DNA strands are held
together by __________.
hydrogen bonds.
7.
The correct sequence for the phases of mitosis
is __________.
prophase - prometaphase - metaphase -
anaphase - telophase.
8.
The correct sequence for the phases of the cell
cycle, starting with a newly divided cell, is
__________.
interphase - mitosis - cytokinesis
9.
Cytokinesis in plant cells differs from
cytokinesis in animal cells in that __________.
A. in plant cells, new cell wall is built between
daughter cells starting with a cell plate.
B. animal cells require the production of a cell
plate before cytokinesis can occur.
C. in plant cells, a cleavage furrow is formed
immediately after telophase.
D. cytokinesis in the plant cells begins during
prophase.
A. in plant cells, new cell wall is built
between daughter cells starting with a
cell plate.
10.
DNA replication is called semi-conservative
because
the two resulting DNA molecules each
have one new DNA strand and one old
strand from the original DNA molecule.
11.
During DNA replication
A. only one strand of the parent DNA is
D. the strands of parent DNA are
unwound.
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copied.
B. neither strand of parent DNA appears in
daughter DNA.
C. DNA replication is considered
conservative.
D. the strands of parent DNA are unwound.
E. complementary nucleotides are positioned
by the enzyme helicase.
12.
The elongation of the leading strand during
DNA synthesis
A. progresses away from the replication
fork.
B. occurs in the 3' to 5' direction.
C. produces Okazaki fragments.
D. depends on the action of DNA
polymerase.
E. does not require a template strand.
D. depends on the action of DNA
polymerase.
13.
The first sign of cytokinesis in animal cells is
the formation of the __________.
cleavage furrow
14.
Four of the following five statements are
preventative measures to avoid the cancer.
Which of the following is not correct?
A. Increase consumption of foods rich in
antioxidants like vitamin C and beta carotene
and vegetables from the cabbage family.
B. Avoid salt-cured, pickled, or smoked meats
and saturated fatty foods.
C. Exercise regularly and avoid obesity.
D. Avoid smoking, excessive alcohol use, and
excessive sun exposure.
E. Avoid a high fiber and low sodium diet.
E. Avoid a high fiber, and low sodium
diet.
15.
The G1 checkpoint is especially significant
because ________.
If the cell cycle passes this
checkpoint, the cell is capable of
dividing.
16.
The genome of an organism is all of its
__________.
Genes (genetic material).
17.
How does the space between our fingers arise?
The cells die by apoptosis.
18.
In both the animal and plant cells, after the
division of the nucleus, the single cell splits into
cytokinesis
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