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WorksheetsMeiosis
Total questions: 75
Worksheet time: 46mins
Name
Class
Date
1.
a)
INCREASES GENETIC VARIATION
b)
TAKES PLACE IN PROPHASE I
c)
CROSSING OVER
d)
ALL ARE TRUE
2.
CROSSING OVER INCREASES
a)
LIFE SPAN
b)
GENETIC VARIATION
c)
THE NUMBER OF OFF-SPRING
d)
ALL ARE TRUE
3.
CROSSING OVER TAKES PLACE DURING
a)
PROPHASE II
b)
PROPHASE I
c)
INTERPHASE
d)
METAPHASE I
4.
__________-RE-ORDERS THE BASE SEQUENCE ;
EXAMPLE TO CREATE MORE GENETIC DIVERSITY
(ATA-CCG) TO (TTA-GGC)
a)
CROSSING OVER
b)
MITOSIS
c)
ASEXUAL REPRODUCTION
5.
DURING WHICH PHASE OF MEIOSIS DOES GENETIC VARIATION INCREASE
a)
PROPHASE II
b)
PROPHASE I
c)
ANAPHASE I
d)
ANAPHASE II
6.
WHAT TYPE OF CELLS STORE THE GENETIC INFORMATION THAT IS PASSED TO OFF-SPRING
a)
BODY CELLS
b)
MITOSIS
c)
EGG
d)
SPERM
e)
EGG AND SPERM
7.
MEIOSIS
a)
REDUCES THE NUMBER OF CHROMOSOMES BY ONE HALF
b)
PRODUCES UNIQUE SEX CELLS-1N
c)
ALLOWS TRAITS TO BE PASSED TO OFFSPRING
d)
ALL ARE TRUE
e)
INCREASE GENETIC VARIATION
8.
MITOSIS
a)
INCREASES GENETIC VARIATION
b)
ALLOWS TRAITS TO BE PASSED ON TO OFFSPRING
c)
PRODUCES 2 IDENTICAL DAUGHTER CELLS
d)
ALL ARE TRUE
9.
MEIOSIS PRODUCES 4 CELLS-THE CHROMOSOME NUMBER IS ...
a)
DIPLOID
b)
HAPLOID
10.
NORMAL HUMANS HAVE 46 CHROMOSOMES, HOW MANY WILL THE GERM CELLS HAVE AFTER MEIOSIS?
a)
46
b)
23
c)
12
d)
92
11.
MOVING MOLECULES AGAINST A CONCENTRATION GRADIENT IS
a)
PASSIVE TRANSPORT
b)
ACTIVE TRANSPORT
12.
What is it called when a sperm and egg meet?
a)
meiosis
b)
fertilization
c)
cell division
d)
mitosis
13.
The chromosomes that pair up during meiosis, are called __________ chromosomes.
a)
homozygous
b)
asexual
c)
homologous
d)
genes
14.
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
15.
Compared to the number of chromosomes contained in a body cell, how many chromosomes would normally be contained in a gamete?
a)
The same number
b)
One-fourth as many
c)
Twice as many
d)
Half as many
16.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
17.
What is one of the advantages, why is it better to reproduce sexually versus asexually?
a)
survival of the fittest
b)
overproduction
c)
genetic variation
d)
cloning
18.
Crossing over helps promote
a)
male genotype
b)
genetic variation
c)
DNA replication
d)
mitosis
19.
Chromosomes exchange genetic material during
a)
crossing over
b)
replication
c)
synthesis
d)
translation
20.
A human zygote should have _____ chromosomes inside.
a)
46
b)
23
c)
92
d)
64
21.
A human being has a somatic cell that has 46 chromosomes. What is the haploid number found in a gamete?
a)
23
b)
46
c)
69
d)
92
22.
How many chromosomes are in an egg or sperm cell at the end of Meiosis?
a)
23
b)
46
c)
64
d)
32
23.
In what phase is the DNA of the cell replicated or copied?
a)
Interphase
b)
Prophase I
c)
Telophase I
d)
Metaphase I
24.
Crossing over occurs in what phase of Meiosis?
a)
Prophase I
b)
Prophase II
c)
Metaphase I
d)
Interphase
25.
What part of the cell disappears during Prophase and reappears in Telophase?
a)
nuclear membrane
b)
cell membrane
c)
chromosomes
26.
When chromosomes cross over they form what?
a)
A tetrad
b)
A spindle fiber
c)
A chromatid
27.
Genetic information is transferred to homologous pairs during what?
a)
Cytokinesis
b)
Crossing over
c)
Interphase
28.
What phase is in the picture?
a)
Anaphase I
b)
Anaphase II
c)
Telophase I
d)
Metaphase II
29.
Asexual reproduction and mitosis occur in...
a)
Body Cells
b)
Sex Cells or Gametes
30.
How many daughter cells are produced at the end of mitosis?
a)
1
b)
2
c)
3
d)
4
31.
How many chromosomes are in the new cells of mitosis?
a)
46
b)
23
32.
The purpose of sexual reproduction and meiosis is to form ________ cells.
a)
body
b)
sex
c)
somatic
d)
brain
33.
How many daughter cells are produced at the end of meiosis?
a)
1
b)
2
c)
3
d)
4
34.
Before mitosis or meiosis can begin, DNA must go through Interphase. This is when...
a)
DNA replicates
b)
DNA splits
c)
DNA forms chromosomes
d)
Chromosomes cross over
35.
In meiosis, Prophase 1 is when chromosomes...
a)
cross over
b)
mutate
c)
hybridize
d)
fertilize
36.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
37.
What is one reason why we need meiosis?
a)
To double the number of chromosomes going into sex cells
b)
To halve the number of chromosomes going into sex cells
c)
To triple the number of chromosomes going into sex cells
d)
To not change the number of chromosomes going into sex cells
38.
Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.
a)
23, 46
b)
46, 23
c)
2, 4
d)
50, 100
39.
Goes through P.M.A.T two rounds
a)
Mitosis
b)
Meiosis
c)
Osmosis
d)
Transcription
40.
If the Diploid number of Carrots is 18, the haploid number is
a)
18
b)
9
c)
27
d)
36
41.
If a somatic cell in a butterfly contains 24 chromosomes, a butterfly egg would contain
a)
3
b)
6
c)
12
d)
24
42.
When homologous chromosomes match up, they form a structure call a ___________.
a)
tetrad
b)
triad
c)
diploid
d)
gamete
43.
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
44.
What kind of cells are made in MEIOSIS?
a)
Haploid cells
b)
Diploid Cells
c)
Skin Cells
d)
Liver Cells
45.
Diploid Cells are represented by
a)
2n
b)
n
c)
4n
d)
1/2 n
46.
When homologous chromosomes match up, they form a structure call a ___________.
a)
tetrad (pair of chromosomes, one from mom and one from dad)
b)
triad
c)
diploid
d)
quad (group of 4 replicated chromosomes, 2 from mom and 2 from dad)
47.
Which cellular process is shown?
a)
meiosis
b)
endocytosis
c)
mitosis
d)
phagocytosis
48.
Which of the following best describes meiosis?
a)
It is carried out in all tissues theat require cell replacement
b)
It occurs only in cells in the reproductive structures of an organism
c)
It happens in all of the tissues except the brain and spinal cord
d)
It is the first stage of mitosis
49.
products of meiosis are genetically
a)
different
b)
identical
50.
A human zygote should have _____ chromosomes inside.
a)
46
b)
23
c)
92
d)
64
51.
Which of the following represents chromosome # during fertilization?
a)
n+n=2n
b)
n=n
c)
2n=n+n
d)
2n=2n
52.
How many daughter cells does Meiosis create?
a)
2
b)
4
c)
8
d)
1
53.
In mitosis, the two resulting cells are
a)
different from the starting cell and identical to each other.
b)
different from the starting cell and different from each other.
c)
identical to the starting cell and different from each other.
d)
identical to the starting cell and identical to each other.
54.
Meiosis results in the production of
a)
2 diploid cells
b)
2 haploid cells
c)
4 haploid cells
d)
4 diploid cells
55.
Which of the following is NOT a part of mitosis?
a)
prophase
b)
anaphase
c)
metaphase
d)
interphase
56.
The end of meiosis results in ____ to each other.
a)
2 cells that are identical
b)
4 cells that are identical
c)
2 cells that are not identical
d)
4 cells that are not identical
57.
The cell spends 90% of it's life in _____.
a)
Mitosis
b)
Cytokinesis
c)
Interphase
d)
Meiosis
58.
If a parent cell has 26 chromosomes, how many chromosomes would each daughter cell contain in mitosis?
a)
42
b)
13
c)
26
d)
1738
59.
When does the genetic material get replicated?
a)
G2
b)
metaphase
c)
S phase
d)
anaphase
60.
This picture shows which process?
a)
mitosis
b)
meiosis
c)
the cell cycle
d)
DNA Replication
61.
In the G1 stage of the cell cycle, the cell ______.
a)
Grows
b)
Rests
c)
Replicates DNA
d)
Divides
62.
Mitosis results in...
a)
Four 1n cells
b)
Four 2n cells
c)
Two 1n cells
d)
Two 2n cells
63.
Which of the following shows the correct sequence of the cell cycle?
a)
Mitosis-> G1->S->G2->cytokinesis
b)
S->G1-> G2-> mitosis-> cytokinesis
c)
cytokinesis->mitosis->G1->S->G2
d)
G1->S->G2->mitosis->cytokinesis
64.
Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?
a)
In order for genetic information to be transferred into daughter cells.
b)
In order for the cell to be able to increase in size.
c)
In order for the DNA to be contained in the nucleus.
d)
In order for the cell to re-order the DNA sequencing in the new cells.
65.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
66.
Which of the following cell types is formed by meiosis?
a)
muscle cells
b)
skin cells
c)
sperm cells
d)
blood cells
67.
Which process is necessary for the inherited traits of an organism to be passed along by sexual reproduction?
a)
mitosis
b)
meiosis
c)
mutation
d)
fission
68.
Which statement correctly describes meiosis?
a)
Cells divide only once.
b)
Meiosis does not occur in reproductive cells.
c)
The cells produced at the end of meiosis are genetically identical to the parent cell.
d)
The cells produced at the end of meiosis contain half the number of chromosomes as the parent cell.
69.
Which best describes the process shown?
a)
nondisjunction
b)
mitosis
c)
independent assortment
d)
crossing over
70.
The haploid number of chromosomes for humans is ____.
a)
46
b)
43
c)
23
d)
26
71.
The result of meiosis is ______.
a)
two diploid cells
b)
two haploid cells
c)
four diploid cells
d)
four haploid cells
72.
Which process produces the most variation within a species?
a)
mitosis
b)
cloning
c)
meiosis
d)
asexual reproduction
73.
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.
74.
As soon as fertilization occurs, the resulting structure is which of the following?
a)
Gamete
b)
Fetus
c)
Offspring
d)
Zygote
75.
How would the DNA in a horse muscle cell compare with the DNA in a horse sperm cell?
a)
The sperm cell would have twice the DNA as the muscle cell.
b)
The sperm cell would have half as much DNA as the muscle cell.
c)
The sperm cell and muscle cell would contain the same amount of DNA.
d)
The muscle cell would have four times the DNA as the sperm cell..
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