WorksheetsUnit 7: Day 1
Total questions: 27
Worksheet time: 18mins
Name
Class
Date
1.
The cells produced via meiosis are called:
a)
sex cells
b)
somatic cells
c)
body cells
d)
skin cells
2.
This produces 2 identical cells.
a)
mitosis
b)
meiosis
3.
A human usually has xx amount of chromosomes.
a)
6
b)
22
c)
4
d)
46
4.
What is it called when a sperm and egg meet?
a)
meiosis
b)
fertilization
c)
cell division
d)
mitosis
5.
What phase is shown in the picture?
a)
anaphase 1
b)
anaphase 2
c)
metaphase 1
d)
telophase 1
6.
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
7.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
8.
Unlike mitosis, meiosis in male mammals results in the formation of
a)
one haploid gamete
b)
three diploid gametes
c)
four diploid gametes
d)
four haploid gametes
9.
When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, _________________ occurs
a)
crossing over
b)
mutagenesis
c)
hybridization
d)
fertilization
10.
What kind of cells are made in MEIOSIS?
a)
Haploid Gametes
b)
Diploid Somatic Cells
c)
Skin Cells
d)
Liver Cells
11.
Diploid Cells are represented by
a)
2n
b)
n
c)
4n
d)
1/2 n
12.
If the Diploid number of Carrots is 18, the haploid number is
a)
18
b)
9
c)
27
d)
36
13.
Goes through P.M.A.T two rounds
a)
Mitosis
b)
Meiosis
c)
Osmosis
d)
Transcription
14.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
15.
If a somatic cell in a butterfly contains 24 chromosomes, a butterfly egg would contain
a)
3
b)
6
c)
12
d)
24
16.
The process of crossing over occurs in what phase of meiosis?
a)
anaphase 1
b)
prophase 1
c)
prophase 2
d)
telophase 1
17.
Which of these cells would be produced through meiosis?
a)
skin cells
b)
liver cells
c)
brain cells
d)
sperm cells
18.
The chromosomes that pair up during meiosis, are called __________ chromosomes.
a)
homozygous
b)
asexual
c)
homologous
d)
genes
19.
When homologous chromosomes match up, they form a structure call a ___________.
a)
tetrad
b)
triad
c)
diploid
d)
gamete
20.
Crossing over helps promote
a)
male genotype
b)
genetic variation
c)
DNA replication
d)
mitosis
21.
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
22.
What is another reason we need meiosis?
a)
So the offspring has genes from both parents
b)
So the offspring has genes from one parent
c)
So the offspring has genes from neither parents
d)
So the offspring makes its own genes
23.
Why do 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
24.
Chromosomes exchange genetic material during
a)
crossing over
b)
replication
c)
synthesis
d)
translation
25.
A human zygote should have _____ chromosomes inside.
a)
46
b)
23
c)
92
d)
64
26.
If the Diploid number of Carrots is 18, the haploid number is
a)
18
b)
9
c)
27
d)
36
27.
What phase is represented?
a)
metaphase 1
b)
metaphase 2
c)
anaphase 1
d)
anaphase 2
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