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HBHD II Chapter 25

Total questions: 62

Worksheet time: 33mins

Name
Class
Date
1.

In the example of albinism, a person with the gene combination of Aa is said to be a genetic (a)   .

2.

If two different dominant genes occur together, a form of dominance called ________ ________ exists.

(a)  

3.

________ ________ chromosomes do not have matching structures.

(a)  

4.

If an individual has the sex chromosomes XX, that person will have the sexual characteristics of a (a)   .

5.

Caused by recessive genes in chromosome pair 7

a)

Monosomy

b)

Nondisjunction

c)

Leber hereditary optic neuropathy

d)

Single-gene disease

e)

Cystic fibrosis

6.

Results in total blindness by age 30

a)

Nondisjunction

b)

Monosomy

c)

Leber hereditary optic neuropathy

d)

Single-gene disease

e)

Cystic fibrosis

7.

Disease conditions that result from the combined effects of inheritance and environmental factors

a)

Single-gene disease

b)

Monosomy

c)

Nondisjunction

d)

Leber hereditary optic neuropathy

e)

Genetic predisposition

8.

Results from a failure to produce the enzyme phenylalanine hydroxylase

a)

Phenylketonuria

b)

Single-gene disease

c)

Nondisjunction

d)

Monosomy

e)

Leber hereditary optic neuropathy

9.

Presence of only one autosome instead of a pair

a)

Leber hereditary optic neuropathy

b)

Cystic fibrosis

c)

Single-gene disease

d)

Monosomy

e)

Nondisjunction

10.

Usually caused by trisomy of chromosome 21

a)

Down syndrome

b)

Nondisjunction

c)

Leber hereditary optic neuropathy

d)

Monosomy

e)

Single-gene disease

11.

Cystic fibrosis is an example

a)

Cystic fibrosis

b)

Leber hereditary optic neuropathy

c)

Monosomy

d)

Nondisjunction

e)

Single-gene disease

12.

Results from nondisjunction of chromosomes and typically has the XXY pattern

a)

Monosomy

b)

Single-gene disease

c)

Klinefelter syndrome

d)

Nondisjunction

e)

Leber hereditary optic neuropathy

13.

Term used to describe what happens when a pair of chromosomes fails to separate

a)

Nondisjunction

b)

Single-gene disease

c)

Monosomy

d)

Leber hereditary optic neuropathy

e)

Cystic fibrosis

14.

Sometimes called XO syndrome, it is treated with hormone therapy

a)

Nondisjunction

b)

Monosomy

c)

Single-gene disease

d)

Turner syndrome

e)

Leber hereditary optic neuropathy

15.

A pedigree is a chart that can be used to determine: (select all that apply)

a)

genetic relationships in a family over several generations

b)

the possibility of producing offspring with certain genetic disorders

c)

the possibility of a person developing a genetic disorder late in life

d)

Genetics is only one generation

e)

No illness

16.

The Punnett square is a grid used to determine:

a)

genetic disorders

b)

the probability of inheriting genetic traits

c)

proper gene replacement therapy

d)

the necessity for amniocentesis

17.

Some forms of cancer are thought to be caused, at least in part, by specific genes called:

a)

cancercytes

b)

trisomy

c)

oncogenes

d)

autosomes

18.

When producing a karyotype, the most common source of cells for the sample is the:

a)

vagina

b)

rectum

c)

lining of the cheek

d)

throat

19.

An ultrasound transducer is used during amniocentesis to:

a)

create a sharper image

b)

take measurements during the procedure

c)

prevent damaging rays during the procedure

d)

guide the tip of the needle to prevent placental damage

20.

Electrophoresis is a process that:

a)

provides a method for DNA analysis

b)

means electric separation

c)

is the basis for DNA fingerprinting

d)

all of the above

21.

The use of genetic therapy began in 1990 with a group of young children who had:

a)

AIDS

b)

adenosine deaminase deficiency

c)

hemophilia

d)

cystic fibrosis

22.

Chorionic villus sampling is a procedure in which cells that surround a young embryo are collected through the opening of the cervix.

a)

True

b)

False

23.

Karyotyping is the process used for DNA fingerprinting.

a)

True

b)

False

24.

In amniocentesis, genes are introduced with the hope that they will add to the production of the needed protein.

a)

True

b)

False

25.

Deficiency of adenosine deaminase results in severe combined immune deficiency.

a)

True

b)

False

26.

One hypothesis that may explain some forms of cancer is known as the tumor suppressor gene hypothesis.

a)

True

b)

False

27.

Unscramble the word: RCRRIEA

(a)  

28.

Unscramble the word: YTSMOIR

(a)  

29.

Unscramble the word: EGNE

(a)  

30.

Unscramble the word: DPEREGIE

(a)  

31.

Unscramble the word: SOEMCROSHOM

(a)  

32.

Mr. and Mrs. Harrington are both carriers for albinism. Using the Punnett square identified as Harrington, determine what percentage of Mr. and Mrs. Harrington’s offspring will have typical pigmentation (a)   .

33.

Mr. and Mrs. Harrington are both carriers for albinism. Using the Punnett square identified as Harrington, determine what percentage of Mr. and Mrs. Harrington’s offspring will be carriers (a)   .

34.

Mr. and Mrs. Harrington are both carriers for albinism. Using the Punnett square identified as Harrington, determine what percentage of Mr. and Mrs. Harrington’s offspring will have albinism (a)   .

35.

When a sperm cell unites with an ovum, a _______ is formed.

a)

Zygote

b)

Chromosome

c)

Gamete

d)

Fetus

36.

DNA molecules can also be called: (select all that apply)

a)

A chromatin strand

b)

A chromosome

c)

Double Helix

d)

Triple Helix

e)

Quad Helix

37.

Nonsexual traits:

a)

Show up more often in females than in males

b)

May be carried on sex chromosomes

c)

Are the result of genetic mutation

d)

All of the above

38.

If a person has only X chromosomes, that person is:

a)

Missing essential proteins

b)

Missing essential genes

c)

Genetically female

d)

Genetically male

39.

A karyotype:

a)

Can detect trisomy

b)

Is useful for diagnosing a tubal pregnancy

c)

Is frequently used as a tool in gene augmentation therapy

d)

Can detect the presence of oncogenes

40.

Which of the following pairs is mismatched?

a)

SCID—gene therapy

b)

Turner syndrome—trisomy

c)

PKU—recessive

d)

Cystic fibrosis—single-gene disease

41.

Specific genes called (a)   are believed to be related to cancer.

42.

Fetal tissue may be collected by a procedure called (a)   .

43.

Severe complications of (a)   can be avoided by reducing phenylalanine in the diet.

44.

The entire collection of genetic material in each cell is called the (a)   .

45.

(a)   is caused by recessive genes in chromosome pair seven.

46.

A (a)   is a grid used to help determine the probability of inheriting genetic traits.

47.

A (a)   is a person who has a recessive gene that is not expressed.

48.

Absence of an essential lipid-producing enzyme may result in the recessive condition (a)   .

49.

(a)   is a recessive X-linked disorder.

50.

Klinefelter syndrome occurs in (a)   .

51.

The science of genetics developed from (a)   quest to explain how biological characteristics are inherited.

52.

(a)   is the science that describes how environmental and behavioral factors may result in offspring with genetic traits that cannot be explained by genes alone.

53.

Trisomy results from a mistake in meiosis called (a)   that occurs when a pair of chromosomes fails to separate.

54.

Trisomy 21 produces a group of symptoms called (a)   .

55.

In (a)   , genes are introduced with the hope that they will add to the production of the needed protein.

56.

Which genetic disorder can block the veins and prevent oxygen from flowing?

a)

Sickle Cell Disease

b)

Cystic Fibrosis

c)

Down syndrome

d)

Hemophilia

57.
Sickle cell anemia is caused by 
a)
a lack of red blood cells
b)
a genetic abnormality in the amino acids
c)
lack of available oxygen
d)
too much iron in the circulatory system
58.
Which disorder is characterized by the inability to break down a specific amino acid and can be treated by a special diet?
a)
Huntington's
b)
Tay Sachs
c)
Cystic fibrosis
d)
PKU
59.
Which disease or disorder causes people to have abnormal hemoglobin?
a)
Cystic Fibrosis
b)
Albinism
c)
Sickle-cell Disease
d)
Down Syndrome
60.
Cystic Fibrosis is a genetic disorder in which the body produces thick mucus in the lungs and intestines,
a)
True
b)
False
61.

A rare genetic disorder where in the blood does not clot in a typical way that it should due to insufficient blood-clotting factors.

a)

Sickle Cell Anemia

b)

Hemophilia

c)

Phenylketonuria

d)

Rett Syndrome

62.
Phenylketonuria (PKU) is an inability to digest phenylalanine which can cause irreversible brain damage.
a)
True
b)
False