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WorksheetsMeiosis
Total questions: 20
Worksheet time: 12mins
Name
Class
Date
1.
What is it called when a sperm and egg meet?
a)
meiosis
b)
fertilization
c)
cell division
d)
mitosis
2.
The chromosomes that pair up during meiosis, are called __________ chromosomes.
a)
homozygous
b)
asexual
c)
homologous
d)
genes
3.
A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body cells?
a)
20
b)
40
c)
80
d)
160
4.
Crossing over helps promote
a)
male genotype
b)
genetic variation
c)
DNA replication
d)
mitosis
5.
A human zygote should have _____ chromosomes inside.
a)
46
b)
23
c)
92
d)
64
6.
Females have ____ and males have _____ chromosomes.
a)
XX, XY
b)
XY, XX
c)
XX, XX
d)
XY, XY
7.
The process of crossing over occurs in what phase of meiosis?
a)
anaphase 1
b)
prophase 1
c)
prophase 2
d)
telophase 1
8.
Why is meiosis important for sexual reproduction?
a)
It allows the zygote formed from fertilization to have triple the chromosome number of the organism.
b)
It allows gametes to have twice the original number of chromosomes of the organism.
c)
It allows gametes to have half the original number of chromosomes of the organism.
d)
It allows the zygote formed from fertilization to have half the original number of chromosomes of the organism.
9.
What phase is this?
a)
Interphase II
b)
Prophase I
c)
Metaphase I
d)
Anaphase II
10.
What phase is shown here?
a)
Anaphase II
b)
Metaphase I
c)
Anaphase I
d)
Telophase II
11.
What phases is shown here?
a)
Prophase II
b)
Prophase I
c)
Anaphase II
d)
Interphase I
12.
What phase is shown here?
a)
Prophase II
b)
Metaphase I
c)
Metaphase II
d)
Anaphase I
13.
What phase is shown here?
a)
Metaphase II
b)
Telophase I
c)
Telophase II
d)
Metaphase I
14.
What phase is shown here?
a)
Telophase I
b)
Metaphase II
c)
Telophase II
d)
Anaphase I
15.
What phase is shown here?
a)
Telophase II
b)
Anaphase II
c)
Metaphase I
d)
Interphase I
16.
What process is shown here?
a)
Genetic Randomization
b)
Cross Over
c)
Allele Switching
d)
Cross Pollination
17.
What phase is shown here?
a)
Anaphase I
b)
Prophase I
c)
Metaphase II
d)
Metaphase I
18.
The point where crossing over occurs is know as the ...
a)
bivalent
b)
tetrad
c)
chiasma
d)
chromatid
19.
The following contributes to genetic variation.
a)
Crossing over
b)
Random Alignment
c)
Random fertilization
d)
All of the above
20.
A pair of homologous chromosomes in prophase I.
a)
Chiasma
b)
Bivalent
c)
Chiasmata
d)
Gonosomes
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