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Chapter 8 Review 1
Test Description: Review 1 for chapter 8
Instructions: Answer all questions to get your test result.
1) Anaphase is
A
the period in which DNA is copied
B
the first stage of mitosis
C
the time between cell divisions
D
the phase of mitosis during which chromosomes move to opposite poles
2) The __________________ equally divides an animal cell into two offspring cells.
A
S phase
B
G1 Phase
C
mitotic spindle
D
cleavage furrow
3) The S phase is
A
the first phase of interphase
B
the period during which DNA is copied
C
the production of offspring from one parent
D
the first phase of mitosis
4) If an organism has 12 chromosomes in each body cell, how many chromosomes would you expect to find in the organism's gametes?
A
10
B
6
C
4
D
12
5) During which phase of meiosis do tetrads form?
A
prophase
B
anaphase II
C
metaphase II
D
telophase I
6) The division of the cytoplasm of a eukaryotic cell is called
A
cytokinesis
B
binary fission
C
cytoplasmic streaming
D
mitosis
7) Which of the following events occurs during synapsis?
A
pairing of homologues
B
appearance of spindle fibers
C
division of the cytoplasm
D
replication of the DNA
8) During mitosis and meiosis, kinetochore fibers are thought to
A
move chromosomes
B
join chromatids
C
make centromeres
D
control cytokinesis
9) Histones are proteins that
A
aid in controlling the activity of regions of DNA
B
All of the above
C
aid in the packing of DNA in eukaryotic cells
D
are found only in prokaryotic cells
10) Spermatogenesis results in
A
four haploid cells
B
one haploid cell and three polar bodies
C
four diploid cells
D
two sperm cells and two polar bodies
11) Each offspring cell produced by binary fission contains
A
an independent assortment of the original cell's chromosomes
B
twice as many chromosomes as the orignial cell had
C
half the chromosomes of the original cell
D
an identical copy of the original cell's chromosome
12) Crossing-over results in genetic recombination by
A
randomly separating the maternal and paternal chromosomes
B
permitting the exchange of genetic material between maternal and paternal chromosomes
C
mixing half the maternal chromosomes with half the paternal chromosomes
D
reducing the original cell's chromosome number by half
13) What structure not found in animal cells forms along the midline of a dividing plant cell?
A
chloroplast
B
cleavage furrow
C
kinetochore
D
cell plate
14) Each offspring cell that is produced by mitosis has half as many chromosomes as the original cell had.
A
True
B
False
15) Chromatids form while DNA copies itself before cell division.
A
False
B
True
16) How many of the 46 chromosomes are sex chromosomes?
A
44
B
42
C
2
D
4
17) The production of offspring from one parent is
A
asexual reproduction
B
sexual reproduction
C
the union of gametes
18) A mitotic spindle is present in both types of cells, eukaryotic and prokaryotic cells, during cell division.
A
True
B
False
19) Tetrads line up along the equator of the dividing cell during
A
metaphase of meiosis I
B
anaphase of meiosis II
C
metaphase of mitosis
D
metaphase of meiosis II
20) The female sex cell/gamete is the __________ and the female sex chromosomes are ________.
A
egg; XX
B
ovary; XX
C
egg; XY
D
sperm; XY
*select an answer for all questions
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