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DMS Genetics 2

Total questions: 47

Worksheet time: 51mins

Name
Class
Date
1.

This genetic disorder is caused by non-disjunction of the 21st chromosome. It is one of the most common chromosomal disorders. Non disjunction is when a chromosome moves in the wrong direction during meiosis.

a)

Turner syndrome

b)

Hunington Disease

c)

Down syndrome

d)

Myopia

2.

This genetic disorder causes a reduction/absence of melanin in the skin, hair and eyes. Located on chromosome 6, this disorder is common throughout the animal kingdom.

a)

Anemia

b)

Albinism

c)

Myopia

d)

Hemophilia

3.

Does this pedigree show a dominant or recessive pattern of inheritance?

a)

Dominant

b)

Recessive

4.

Which pedigree is showing a RECESSIVE inheritance pattern?

a)
b)
5.

What do the half shaded symbols in a pedigree represent?

a)

Someone who doesn't have the trait

b)

Someone who does have the trait

c)

Someone who is a carrier of the trait

6.

Humans with genetic diseases can have a healthy or normal gene inserted into their body using a virus. This is called:

a)

Gene therapy

b)

Cloning

c)

DNA fingerprinting

7.
A chart or family tree that tracks which members of a family have a particular trait or disease.
a)
Carrier
b)
Karyotype
c)
Pedigree
d)
Genome
8.

Disease that caused the body to produce thick and sticky mucus that can clog the lungs and obstruct the pancreas.

a)

hemophilia

b)

cystic fibrosis

c)

tay sachs

d)

sickle cell anemia

9.

Which type of genetic disorder is much rarer because even just 1 defective gene will create the disease?

a)

dominant disorder

b)

recessive

c)

codominant

d)

sex-linked

10.

Why do sex-linked disorders affect men more than women?

a)

males only have 1 X chromosome

b)

males do not have an X chromosome

c)

girls always have 2 defective X chromosomes

d)

males only have Y chromosomes

11.

How do genetic disorders happen ? Choose 2.

a)

mutations of chromosomes

b)

mistakes during meiosis

c)

eating unhealthy

d)

they are transmitted

12.

_____________________ is a method used to identify an individual from a sample of DNA by looking at unique patterns in their DNA. This can be used to prove a criminal's guilt.

a)

gene therapy

b)

chromosomal therapy

c)

gene mapping

d)

DNA fingerprinting

13.

Name 2 common uses for DNA testing.

a)

genetic testing

b)

convict criminals

c)

for the human genome project

d)

scientific research

14.

If you create a Punnett Square using XX and XY chromosomes, how many offspring will be male?

a)

One half

b)

Three fourths

c)

One tenth

d)

One third

15.

what chromosome(s) do males inherit from their fathers?

a)

the X

b)

Both the X and Y

c)

the Y

d)

Neither the X and Y

16.

Where do daughters get their X chromosomes?

a)

two from each parent

b)

only from their fathers

c)

one from each parent

d)

only from their mothers

17.

Some traits, including diseases, can be inherited on sex chromosomes.

a)

True

b)

False

18.

Someone who isn't affected by a disease but who can pass the disease on to offspring is called

a)

Infector

b)

Carrier

c)

a contagion

d)

an ineffector

19.

What allele combination could represent the carrier of a recessive sex-related trait?

a)

XHXH

b)

XHXh

c)

XHY

d)

XhY

20.

What allele combination could represent a person who suffered from a recessive disease trait?

a)

XBXB

b)

XY

c)

XbY

d)

XBXb

21.

One sex-linked disease causes people to bleed a lot from even a minor cut and is called

a)

Down Syndrome

b)

Hemophilia

c)

Cataracts

d)

Marfan's Syndrome

22.

What parent can give male offspring hemophilia or any other sex linked disorder such as ALD?

a)

the father only

b)

the mother only

c)

both parents

d)

neither parent

23.
What percentage of the offspring will have this recessive disease?
a)
0%
b)
25%
c)
50%
d)
75%
24.
What percentage of the female offspring will be a carrier for this recessive disease?
a)
0%
b)
50%
c)
100%
d)
25%
25.

In fruit flies, eye color is a sex linked trait. Red (R) is dominant to white (r). What is the sex and eye color of flies with the following genotype: X R X r ?

a)

male with white eyes

b)

female with red eyes

c)

male with red eyes

d)

female with white eyes

26.

In fruit flies, eye color is a sex linked trait. Red (R) is dominant to white (r). What is the sex and eye color of flies with the following genotype: X R Y ?

a)

male with white eyes

b)

female with white eyes

c)

male with red eyes

d)

female with red eyes

27.

By looking at the chromosomes how can you tell that this person is biologically female?

a)

Because there are two X chromosomes

b)

Because there are more chromosomes than in a male

28.

What is the mutation in this persons chromosomes?

a)

There is only one X

b)

7 is shaped like a hockey stick

c)

There's an extra 21

d)

1 is too curved

29.

This is called Turners syndrome, can you notice the mutation in the chromosomes?

a)

Both chromosomes 1 are bent

b)

There are too many chromosomes

c)

There are too many of chromosome 3

d)

There is no Y chromosome

30.

These are the chromosomes of someone with Kleinfelters syndrome. What is different about their chromosomes?

a)

There is only one Y chromosome

b)

One of the 5th chromosomes is too curved

c)

There is an extra X chromosome

d)

There are too few chromosomes

31.

This disorder is called "Cry of the cat", can you find the chromosomal mutation?

a)

There are too many chromosomes

b)

They are missing the Y chromosome

c)

Chromosome 1 is bent

d)

Chromosome 5 is too short (missing a piece)

32.

Based on the karyotype, can you guess the name of this genetic disorder?

a)

Curvy 3

b)

Jacob's syndrome

c)

Triple X

d)

Superwoman syndrome

33.

How many chromosomes a baby with born down syndrome will have?

a)

44

b)

46

c)

45

d)

47

34.

Down Syndrome is also called ..

a)

Trisomy 20

b)

Trisomy 22

c)

Trisomy 23

d)

Trisomy 21

35.

Males are more likely to show a sex- linked trait than females.

a)

true

b)

false

36.

If a chromosome is NOT a sex chromosome like X or Y, then it is called an ____

a)

body some

b)

autosome

c)

just a chromosome

d)

sexosome

37.

A display of all of the chromosomes in order of length that is used to determine the presence or absence of a genetic disorder is called a ____

a)

raisotype

b)

karyotype

c)

autosomal type

d)

super display

38.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
Mendelian dominance
d)
complete dominance
39.

A breed of chicken shows incomplete dominance for feather color. One dominant allele codes for black feathers, another dominant allele codes for white feathers. The feathers of heterozygous chickens of this breed will be....

a)

all black

b)

all white

c)

all gray

d)

speckled black and white

40.
This is an example of ___________?
a)
Incomplete dominance
b)
Co-dominance
c)
Mendelian dominance
d)
Complete dominance
41.
Normal red blood cells (rbc's) are bi-concave disks; sickle cells are abnormal. An individual can have both normal and sickle cells. What type of trait describes rbc shape?
a)
Incomplete dominance
b)
Co-dominance
c)
Mendelian dominance
d)
Complete dominance
42.
This is an example of ___________.
a)
 Incomplete Dominance
b)
 Codominance
43.
This is an example of ___________.
a)
Incomplete Dominance
b)
Codominance
44.

Which of the following is a characteristic of Kleinfelter Syndrome? Choose all that apply.

a)

low set ears

b)

infertility

c)

excessive muscle development

d)

inability to swallow

45.

Which of the following is not a characteristic of Trisomy 21?

a)

Round face

b)

cognitive delays

c)

low set ears

d)

likely heart defects

46.

Cri du chat characteristics do NOT include...

a)

drooling

b)

poor larynx development

c)

low set ears

d)

extra 7th chromosome

47.

Turner's Syndrome...

a)

affects girls only

b)

results from an egg cell missing its X chromosome that is fertilized by an X sperm

c)

Poor problem solving skills

d)

All of these are true.