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Worksheets

Karyotypes

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What displays the chromosomes of a cell, usually in a systematically arrangement fo chromosomes pairs in descending order of size?

a)

pedigree

b)

karyotype

c)

punnett square

d)

line graph

2.

Humans have ________ pairs of chromosomes.

a)

23

b)

46

c)

32

d)

64

3.

Humans have ________ total chromosomes.

a)

23

b)

46

c)

32

d)

64

4.

In each pair of chromosomes the individual gets one chromosome from _________ and one from ________.

a)

mom; dad

b)

aunt; uncle

c)

mom; grandmother

d)

dad; grandfather

5.

The first 22 pairs of chromosomes are called _______________

a)

autosomes

b)

sex chromosomes

c)

normal chromosomes

d)

gender chromosomes

6.

The 23rd pair of chromosomes are called _______________

a)

autosomes

b)

sex chromosomes

c)

normal chromosomes

d)

gender chromosomes

7.

What is the sex of the individual below?

a)

male

b)

female

8.

What is the sex of the individual below?

a)

male

b)

female

9.

___________ occurs when chromosomes do not divide properly during mitosis or meiosis.

a)

nondisjunction

b)

disjunction

c)

crossing over

d)

equilibrium

10.

Aneuploidy is

a)

the presence of a normal number of chromosomes

b)

the presence of an abnormal number of chromosomes

c)

the absence of any chromosomes

11.

____________ is when there is an extra copy of a chromosome present.

a)

trisomy

b)

monosomy

c)

disomy

d)

quadrisomy

12.

____________ is when there is a missing copy of a chromosome.

a)

trisomy

b)

monosomy

c)

disomy

d)

quadrisomy

13.

Trisomy is when there is _____ chromosomes instead of 2 and monosomy is when there is ______ chromosomes instead of 2.

a)

3; 1

b)

1; 3

c)

4; 1

d)

1; 4

14.

Which term best describes the karyotype?

a)

normal

b)

monosomy 23

c)

trisomy 23

15.

Which term best describes the karyotype?

a)

normal

b)

monosomy 23

c)

trisomy 23

16.

Which term best describes the karyotype?

a)

normal

b)

monosomy 21

c)

trisomy 21

17.

What type of chromosomal mutation is show:

a)

Inversion

b)

Deletion

c)

Duplication

d)

Translocation

18.

What type of chromosomal mutation is show:

a)

Inversion

b)

Deletion

c)

Duplication

d)

Translocation

19.

What type of chromosomal mutation is show:

a)

Inversion

b)

Deletion

c)

Duplication

d)

Translocation

20.

What type of chromosomal mutation is show:

a)

Inversion

b)

Deletion

c)

Duplication

d)

Translocation