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Meiosis review

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

A cat has a total of 40 chromosomes in its body cells. How many in its sex cells?

a)

38

b)

20

c)

76

d)

10

2.
The process of crossing over occurs in what meiotic phase?
a)
anaphase 1
b)
prophase 1
c)
prophase 2
d)
telophase 1
3.

Meiosis would occur in which of these cells?

a)

skin cells

b)

liver cells

c)

brain cells

d)

sperm cells

4.

In humans, sperm cell have ___________ chromosomes and are ___________________, while skin cells have _____________ chromosomes are are diploid.

a)

23. haploid. 46 diploid

b)

46. haploid. 23. diploid

c)

23 diploid. 46 haploid

d)

46. diploid. 23. haploid.

5.
You get one homologous chromosome from your ________ and one from your _______.  
a)
dad, mom
b)
brother, sister
c)
grandmother, grandfather
d)
dog, cat
6.

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 increase genetic (offspring) variation

7.
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
8.

What kind of cells are made in MEIOSIS?

a)

Haploid Gametes

b)

Diploid Somatic Cells

c)

Skin Cells

d)

Liver Cells

9.

The section of the chromosome labeled "A" is called...

a)

genome

b)

chromatin

c)

gene

d)

Sister chromatin

10.
The haploid number of human chromosomes is
a)
11
b)
12
c)
23
d)
46
11.
Name this phase of meiosis. 
a)
Prophase 1
b)
Metaphase 1
c)
Anaphase 2
d)
Telophase 1
12.
Name this phase of meiosis.
a)
Anaphase 2
b)
Telophase 1
c)
Anaphase 1
d)
Prophase 2
13.
Name this phase of meiosis.
a)
Prophase 1
b)
Metaphase 1
c)
Anaphase 2
d)
Prophase 2
14.
Name this phase of meiosis.
a)
Telophase 2
b)
Telophase 1
c)
Metaphase 1
d)
Anaphase 2
15.
Name this phase of meiosis.
a)
Prophase 1
b)
Metaphase 2
c)
Metaphase 1
d)
Anaphase 1
16.
Name this phase of meiosis.
a)
Telophase 2
b)
Prophase 2
c)
Telophase 1
d)
Metaphase 1
17.

During which phase do homologous chromosomes separate?

a)

Anaphase 1

b)

Metaphse 1

c)

Prophase1

18.
Happens only in Somatic (body) cells:
a)
Mitosis
b)
Meiosis
19.
Happens only in Gametes (sex cells):
a)
Mitosis
b)
Meiosis
20.

A human body (somatic) cell usually has how many chromosomes?

a)

6

b)

23

c)

4

d)

46

21.
The chromosomes that pair up during meiosis, are called __________ chromosomes.  
a)
homozygous 
b)
asexual
c)
homologous
d)
genes
22.

The purpose of mitosis is ____. The purpose of meiosis is ____.

a)

to produce gametes; for growth and repair of body cells

b)

for growth and repair of body cells; to produce gametes

c)

to create more diversity; to make identical copies of body cells

d)

to create new organisms; to destroy viruses

23.
The process of meiosis results in 
a)
2 genetically identical cells.
b)
2 genetically different cells.
c)
4 genetically identical cells.
d)
4 genetically different cells.
24.

Cells contain two complete sets of chromosomes

a)

Chromosome

b)

Diploid

c)

Animal Cell

d)

Haploid

25.

identical chromosomes formed by DNA replication, with both copies joined together by a common centromere; one-half of the duplicated chromosome

a)

centrosome

b)

DNA

c)

sister chromatids

d)

chromosome