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U5L1E3: Meiosis and Genetic Variation

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Meiosis produces daughter cells that are:

a)

genetically identical

b)

genetically different

c)

zygotes

d)

germ cells

2.

*Two copies of chromosomes that share similar genes, but may have different alleles are called:

a)

sister chromatids

b)

Chromie Homies

c)

Replicated chromosomes

d)

homologous chromosomes

3.

Germ cells (cells that make egg and sperm cells) go through:

a)

mitosis

b)

meiosis

c)

DNA replication

4.

An organism has 36 chromosomes in its genome (all the chromosomes it has). What would be the correct diploid number?

a)

36

b)

72

c)

18

d)

2

5.

An organism has 36 chromosomes in its genome (all the chromosomes it has). What would be the correct haploid number?

a)

36

b)

72

c)

18

d)

2

6.

When does crossing over occur?

a)

Mitosis

b)

Meiosis

c)

Prophase II

d)

Anaphase I

7.

All of the following create genetic variation EXCEPT..

a)

Mutations

b)

DNA Replication

c)

Law of Independent Assortment

d)

Crossing Over

8.

Which of the following describes how alleles will be inherited without influencing each other?

a)

Law of Independent Assortment

b)

Law of Segregation

c)

Law of Fertilization

d)

Law of Mitosis

9.

Fertilization...

a)

happens randomly

b)

is controlled by the sperm cells

c)

is controlled by the egg cells

d)

results in individuals have identical traits to their parents

10.

The products of meiosis are (select all that apply)

a)

genetically different daughter cells

b)

haploid cells

c)

diploid cells

d)

identical cells

11.

Meiosis is different from mitosis in that..

a)

it creates identical daughter cells and mitosis does not.

b)

it reduces the number of chromosomes by half whereas mitosis keeps the same number

c)

meiosis and mitosis are not different at all

d)

meiosis creates two daughter cells and mitosis creates four

12.

A mosquito has 6 chromosomes. How many chromosomes would their egg and sperm cells have?

a)

2

b)

3

c)

6

d)

12

13.

Which of the following concepts explains how siblings can look different from one another (select all that apply)?

a)

Mitosis

b)

Meiosis

c)

law of independent assortment

d)

fertilization

e)

DNA replication

14.

The exchange of pieces of chromatin between homologous chromosomes during Prophase I of meiosis is called

a)

independent assortment

b)

mutation

c)

crossing over

d)

random fertilization

15.

Any change in the sequence of DNA is a

a)

recombination

b)

mutation

c)

chromatin

d)

independent assortment

16.
What is it called when a sperm and egg meet?
a)
meiosis
b)
fertilization
c)
cell division
d)
mitosis
17.
Which letter(s) in the diagram correspond to cells that are haploid? 
a)
A
b)
B
c)
C
d)
A and B
18.
Chromosomes exchange genetic material during 
a)
crossing over
b)
replication
c)
synthesis
d)
translation
19.
A human zygote should have _____ chromosomes inside.
a)
46
b)
23
c)
92
d)
64
20.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells

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