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Cellular Genetics: Chromosomes & Meiosis

Total questions: 25

Worksheet time: 26mins

Name
Class
Date
1.

What is a difference between mitosis and meiosis? Mark ALL that apply!

a)

Mitosis occurs in the cytoplasm and Meiosis occurs in the nucleus.

b)

Mitosis results in diploid (2n) daughter cells and Meiosis results in haploid (n) daughter cells.

c)

Mitosis results in 2 daughter cells and Meiosis results in 4 daughter cells.

d)

Mitosis makes somatic (body) cells and Meiosis makes gametes (egg and sperm cells).

2.

Examples of cells that undergo MEIOSIS are

a)

bacterial cells

b)

animal cells (such as skin cells) and plant cells (such as leaf epidermis cells)

c)

sexual reproduction cells called gametes

3.

Cells that contain 2 sets of chromosomes are called _________ (2n).

a)

diploid

b)

haploid

c)

triploid

d)

polyploid

4.

Cells that contain only ONE set of chromosomes are called ________ (n).

a)

diploid

b)

polyploid

c)

triploid

d)

haploid

5.

If a Diploid cell has 20 chromosomes, how many will a haploid have?

a)

20

b)

10

c)

15

d)

40

6.
A cat has a total of 38 chromosomes in its body cells.  How many in its gametes?
a)
38
b)
19
c)
76
d)
10
7.
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
8.

Meiosis is responsible for:

a)

Staying the same

b)

Similar cells

c)

Creating identical cells

d)

Genetic Diversity

9.
How many daughter cells are produced from meiosis ?
a)
10
b)
6
c)
4
d)
2
10.

In Meiosis, the chromosomes go through crossing over, this leads to:

a)

Genetic variation

b)

Identical daughter cells

c)

To replication of genes

d)

No me acuerdo sir

11.
After meiosis is complete, the new cells:
a)
are all identical
b)
are all different
c)
are half identical and half different
d)
are all stretched out
12.
During which phase of the meiotic cell cycle does DNA Replication occur?
a)
Interphase 
b)
Prophase 
c)
Metaphase 
d)
Telophase
13.

SELECT ALL THAT APPLY: What is true for the two "sides" of the X of a chromosome?

a)

Each side is called a sister chromatid

b)

Each side is called a homologous chromosome

c)

Each side is composed of identical DNA

d)

Each side is composed of different DNA

14.

Chromosomes that are paired by size and content are called _______ chromosomes.

a)

homeostasis

b)

homologous

c)

matching

d)

sister

15.

A photo of the chromosomes in a dividing cell that are arranged by size is called a _________.

a)

mutation

b)

gene

c)

picture

d)

karyotype

16.

Identify the tool in the image:

a)

Karyotype

b)

Gel Electrophoresis

c)

DNA Fingerprint

d)

Gene Analysis

17.

Which chromosomes are shown in the image?

a)

Sex Chromosomes

b)

Autosomes

c)

Trisomy

d)

Monosomy

18.

This person's sex is:

a)

Female

b)

Male

19.

This person's sex is:

a)

Female

b)

Male

20.

Trisomy:

a)

Missing 1 chromosome

b)

3 chromosomes (instead of a pair)

c)

Chromosomes are normal

21.

Monosomy:

a)

Missing 1 chromosome

b)

3 chromosomes (instead of a pair)

c)

Chromosomes are normal

22.

SELECT ALL THAT APPLY:

a)

Male

b)

Female

c)

No chromosomal abnormalities

d)

Trisomy 21

23.
If human body cells have 46 chromosomes, how many chromosomes will be in gamete cells after meiosis?
a)
92
b)
46
c)
23
d)
12
24.

XX

a)

Female

b)

Male

25.

XY

a)

Female

b)

Male