SBI3
NAME: _____________________
DATE: _________________
Genetics MITOSIS MEIOSIS –PRACTICE QUESTIONS
Match each item with the correct statement below.
a. cytokinesis
f.
b. chromatid
g.
c. centromere
h.
d. spindle fibres
i.
e. metastasis
j.
____ 1.
____ 2.
____ 3.
____ 4.
____ 5.
____ 6.
____ 7.
____ 8.
____ 9.
____ 10.
haploid
diploid
synapsis
crossing over
tetrad
the event where a cancer cell breaks free from a tumor and moves into another tissue
one strand of a double-stranded chromosome
serve as guide wires for the movement of chromosomes
twice the number of chromosomes in a gamete
the pairing of homologous chromosomes
the equal division of the cytoplasm and constituent organelles
the number of chromosomes in a gamete
the exchange of material between two homologous chromosomes
the point of attachment for chromatids
a pair of homologous chromosomes, each with two chromatids
Match the following stages of mitosis to the events listed below.
a. interphase
d. anaphase
b. prophase
e. telophase
c. metaphase
f. cytokinesis
____
____
____
____
____
____
____
____
____
____
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
cytoplasm divides
the chromosomes in the nucleus become visible
chromosomes replicate
spindle fibres dissolve
chromosomes line up at the equator
centromeres divide, and chromatids move to opposite poles
nuclear membrane forms around chromosomes
nuclear membrane completely dissolves
chromosomes condense becoming shorter and thicker
spindle fibres appear
Match the following stages of meiosis the events listed below.
a. prophase I
e. prophase II
b. metaphase I
f. metaphase II
c. anaphase I
g. anaphase II
d. telophase I
h. telophase II
____
____
____
____
____
____
21.
22.
23.
24.
25.
26.
breaking of the attachment between the two chromatids
homologous chromosomes attach themselves to the spindle fibres
chromosomes, each with two chromatids, line up along the equatorial plate
four haploid cells are produced
homologous chromosomes move to opposite poles
nuclear membrane dissolves, and chromosomes come together in homologous pairs
____
____
____
____
27.
28.
29.
30.
nuclear membrane dissolves and the spindles begin to form, with no replication of chromosomes
cells are ready to enter the second stage of meiosis
homologous chromosomes line up along the equatorial plate
chromosomes under go synapsis
Match the process of cell division to the following events.
a. mitosis
b. meiosis
____
____
____
____
____
____
____
____
____
____
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
daughter cells are genetically identical to each other and parent cell
results in two daughter cells
cells are haploid
introduces genetic variation into a species
daughter cells are different from each other and parent cell
cells are diploid
results in four cells
involves two divisions
involved in the production of sex cells
involves one division
SHORT ANSWER
1. Draw a cell 2n = 12 in anaphase 2. Label spindle fibres, chromatids, centromere. How many chromosomes would an
organism with this cell have in each of its gamete cells at the end of meiosis?
Genetics Practice Test Matching
1
E
11
F
21
2
B
12
B
22
3
D
13
A
23
4
G
14
E
24
5
H
15
C
25
6
A
16
D
26
7
F
17
E
27
8
I
18
C
28
9
C
19
B
29
10
J
20
B
30
G
B
F
H
C
A
E
D
B
A
Answer Section
31
A
32
A
33
B
34
B
35
B
36
A
37
B
38
B
39
B
40
A
49
50
51
52
53
54
55
56
G
F
A
D
H
E
B
C
57
58
59
60
61
62
63
64
A
G
F
B
E
H
C
D