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WorksheetsOL Unit 7 Reproduction & Development Review
Total questions: 38
Worksheet time: 22mins
Name
Class
Date
1.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
2.
What kind of cells are made in MEIOSIS?
a)
Haploid cells
b)
Diploid Cells
c)
Skin Cells
d)
Liver Cells
3.
Diploid Cells are represented by
a)
2n
b)
n
c)
4n
d)
1/2 n
4.
If the Diploid number of Carrots is 18, the haploid number is
a)
18
b)
9
c)
27
d)
36
5.
The process of crossing over occurs in what phase of meiosis?
a)
anaphase 1
b)
prophase 1
c)
prophase 2
d)
telophase 1
6.
The chromosomes that pair up during meiosis, are called __________ chromosomes.
a)
homozygous
b)
asexual
c)
homologous
d)
genes
7.
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)
8.
Crossing over creates
a)
male genotype
b)
genetic variation (differences)
c)
DNA replication
d)
mitosis
9.
Which cellular process is shown?
a)
meiosis
b)
endocytosis
c)
mitosis
d)
phagocytosis
10.
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
11.
What phase is represented?
a)
metaphase 1
b)
metaphase 2
c)
anaphase 1
d)
anaphase 2
12.
What phase is shown in the picture?
a)
metaphase 2
b)
anaphase 2
c)
metaphase 1
d)
telophase 1
13.
products of meiosis are genetically
a)
different
b)
identical
14.
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
15.
How many daughter cells does Meiosis create?
a)
2
b)
4
c)
8
d)
1
16.
A human zygote should have _____ chromosomes inside.
a)
46
b)
23
c)
92
d)
64
17.
Which of the following cells is a gamete?
a)
egg
b)
bone
c)
heart
d)
muscle
18.
Determine the sex of the individual whose karyotype is displayed in the image.
a)
female
b)
male
19.
Determine the sex of the individual whose karyotype is displayed in the image.
a)
female
b)
male
20.
When chromosomes fail to separate correctly during anaphase of meiosis, what can occur?
a)
extra chromosomes are found in the sex cell
b)
chromosomes of the sex cell are doubled
c)
chromosomes of the sex cell are halved
d)
meiosis never completes
21.
Nondisjunction can result in
a)
trisomy conditions
b)
monosomy conditions
c)
additional sex chromosomes
d)
all of these
22.
A pair of identical chromosomes shown in a karyotype, one inherited from mom, and one inherited from dad are called
a)
sister chromotids
b)
centromeres
c)
homologous chromosomes
d)
autosomes
23.
A sperm contains
a)
Both an X and a Y chromosome
b)
Two X chromosomes
c)
An X OR a Y chromosome
d)
only a Y chromosome
24.
An egg contains
a)
22 autosomes and an X chromosome
b)
22 autosomes and an Y chromosome
c)
44 autosomes and 2 X chromosomes
d)
44 autosomes and an X and a Y chromosome
25.
What is the haploid number for this Karyotype?
a)
26
b)
27
c)
52
d)
54
26.
Which of the following is a true statement about gametes?
a)
In humans, there are 22 pair of autosomes in a gamete.
b)
Gametes have a diploid number of chromosomes.
c)
Gametes are body cells
27.
A diploid cell of a normal male human contains
a)
22 autosomes and two Y-chromosomes.
b)
22 pairs of autosomes and two Y-chromosomes.
c)
22 pairs of autosomes, one X and one Y-chromosome
d)
22 autosomes and two X-chromosomes
28.
How many cell divisions does meiosis have?
a)
1
b)
2
c)
4
d)
0
29.
Which is the correct sequence?
a)
mitosis - gametes - zygote - meiosis - fertilization - embryo
b)
Fertilization-mitosis-zygote-gametes-meiosis-embryo
c)
meiosis-zygote-gametes-mitosis-fertilization-embryo
d)
meiosis-gametes-fertilization-zygote-mitosis-embryo
30.
A zygote has 4 chromosomes, how many chromosomes were in the gametes?
a)
2
b)
4
c)
8
d)
1
31.
What chromosome is affected by Down's Syndrome?
a)
23
b)
18
c)
13
d)
21
32.
Turner's Syndrome is monosomy of which chromosome?
a)
18
b)
21
c)
sex chromosome
d)
13
33.
What would indicate a human male?
a)
XX
b)
X
c)
XY
d)
XXY
34.
Which would be considered a somatic cell?
a)
Sperm cell
b)
Egg Cell
c)
Skin Cell
d)
All of these
35.
Which of the following would be considered a Gamete cell?
a)
Egg Cell
b)
Sperm Cell
c)
Both of these
d)
None of these
36.
How many chromosomes are in a typical human somatic cell?
a)
23
b)
22
c)
44
d)
46
37.
How many Autosomes are in a typical human somatic cell?
a)
22
b)
23
c)
44
d)
46
38.
Which reproductive process offers the greatest chance for variation within a species?
a)
Sexual Reproduction
b)
Budding
c)
Binary Fission
d)
Pollination
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