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WorksheetsMeiosis
Total questions: 19
Worksheet time: 10mins
Name
Class
Date
1.
The specific purpose of Meiosis is to make....
a)
4 haploid gametes
b)
2 diploid cells
c)
me
d)
clones
2.
Variation is caused by _____ in this diagram
a)
crossing over
b)
mutation
c)
independent assortment
d)
nondisjunction
3.
What processes are being shown?
a)
meiosis and cell division
b)
meiosis and fertilization
c)
mitosis and fertilization
d)
mitosis and cell division
4.
A picture of chromosomes is known as a ____
a)
nondisjunction
b)
gel electrophoresis
c)
pedigree
d)
karyotype
5.
What does this show?
a)
Normal female
b)
Down Syndrome female
c)
Down Syndrome male
d)
Normal male
6.
What does this show?
a)
Normal male
b)
Normal female
c)
Down Syndrome female
d)
Down Syndrome male
7.
Chromosomes 1 -22 are ________ because they have genes for the same traits in both males and females
a)
homozygous chromosomes
b)
homologous chromosomes
c)
sex chromosomes
d)
autosomes
8.
Chromosomes 23 are
a)
XX
b)
XY
c)
sex chromosomes
d)
all of these
9.
44, XX is a
a)
Trisomy in a female
b)
normal male
c)
normal female
d)
Monosomy in a male
10.
What happened to form the last 2 cells?
a)
crossing over
b)
variation
c)
nondisjunction
d)
homologous pairing
11.
All of the following will result in genetic variation EXCEPT
a)
mutations
b)
mitosis
c)
crossing over
d)
independent assortment
12.
Genetic diversity in a species is
a)
always good
b)
always bad
c)
sometimes good, sometimes bad
d)
dependent on the environment
13.
Homologous chromosomes have genes for _______ traits - one from mom and one from dad
a)
the same
b)
different
c)
magic
d)
various
14.
In trisomy, there are 3 chromosomes in _____
a)
half of the pairs
b)
every pair of chromosomes
c)
one pair of chromosomes
d)
no pairs of chromosomes
15.
Meiosis is important because
a)
it creates zygotes that are diverse
b)
it creates gametes that are different form each other
c)
it produces haploid gametes
d)
all of these
16.
What is shown here? why is it important?
a)
crossing over - increases diversity
b)
nondisjunction - increases diversity
c)
crossing over - decreases diversity
d)
nondisjunction - decreases diversity
17.
If a somatic cell has 50 chromosomes, how many chromosomes would be in its sperm cells?
a)
50
b)
25
c)
100
d)
12.5
18.
All of the following apply to somatic cells EXCEPT
a)
mitosis
b)
2 cell divisions
c)
gametes
d)
identical daughter cells
19.
Which term DOES NOT belong with the rest on the list?
a)
1 diploid -->2 diploid
b)
asexual reproduction
c)
2 cell divisions
d)
clones
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