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Pedigree

Total questions: 58

Worksheet time: 45mins

Name
Class
Date
1.

Which individual in the first generation is a carrier?

a)
The male
b)
The female
c)
individual 1
d)
None of the above
2.

In the second generation-how many people have the disease or display the physical trait?

a)
2
b)
4
c)
5
d)
6
3.

How many people in this whole pedigree have the trait/disease?

a)
2
b)
3
c)
4
d)
6
4.

What is the mode of inheritance shown here?

a)
Autosomal Dominant
b)
Autosomal Recessive
c)
Sex Linked Recessive
5.

What is the mode of inheritance shown here?

a)
Sex Linked
b)
Autosomal Dominant
c)
Autosomal Recessive
6.

What is the mode of inheritance shown here?

a)
Autosomal Recessive
b)
Sex Linked
c)
Autosomal Dominant
7.

What is the mode of inheritance shown here?

a)
Autosomal Recessive
b)
Autosomal Dominant
c)
Sex Linked
8.

What is the mode of inheritance shown here?

a)
Autosomal Dominant
b)
Autosomal Recessive
c)
Sex Linked
9.

What is the mode of inheritance shown here?

a)
Autosomal Dominant
b)
Sex Linked
c)
Autosomal Recessive
10.

Color Blindness is a sex linked disease.  Therefore, it HAS to affect which pair of chromosomes?

a)
21
b)
23
c)
24
d)
1-22
11.

Achondroplasia is an autosomal disease, there for in affects chromosome pair-

a)
4
b)
23
12.

a)
Not affected Female
b)
Not affected Male
c)
Affected Male
d)
Affected Female
13.

a)
Not Affected Male
b)
Not Affected Female
c)
Affected Male
d)
Affected Female
14.

Freckles (F) are dominant over nonfreckles.   What is the phenotype of individual #3

a)
Ff
b)
ff
c)
freckles 
d)
nonfreckles 
15.

The genotype of the affected son and daughter at the bottom of this pedigree...

a)
homozygous dominant
b)
homozygous recessive
c)
heterozygous
d)
Can't tell
16.

What is the relationship between person I 1 and III 2?

a)
Father and Son
b)
Father and Daughter
c)
Grandfather and Granddaughter
d)
Uncle and Niece 
17.

Which of the following combinations of sex chromosomes represent a female?

a)
XY
b)
XXY
c)
XX
18.

If this pedigree shows an autosomal recessive disorder, what MUST the genotype of individual II-3 be?

a)
HH
b)
Hh
c)
hh
d)
None of the above
19.

What type of heredity is shown in the pedigree?

a)
Autosomal Recessive
b)
Sex-Linked
c)
Autosomal Dominant
20.

 Heredity information for traits is located in _____________.

a)
chromosomes on genes
b)
genes of chromosomes
c)
lysosomes in cytoplasm
d)
the mitichondria
21.

How many females are in this pedigree?

a)
3
b)
4
c)
6
d)
7
22.

How many of the males in this pedigree show the trait being studied?

a)
2
b)
3
c)
4
d)
6
23.

When 2 pea plants heterozygous for height (Tt) are crossed, what is the ratio of the resulting genotypes (TT:Tt:tt)?

a)
1:2:1
b)
2:1:1
c)
0:3:1
d)
0:2:2
24.

In a pedigree, what shape represents a male?

a)
circle
b)
square
c)
triangle
d)
diamond
25.

Lisa has two grandmothers in this picture.

a)
Mona and Jackie
b)
Marge and Mona
c)
Selma and Jackie
d)
Patty and Selma
26.

Of sixteen rabbits just born, thirteen have brown fur and three have white fur. The trait for white fur is considered to be 

a)
recessive
b)
bossy
c)
stronger
d)
dominant
27.

 Which term correctly describes an individual with a pair of the same alleles for a trait? 

a)
homologus
b)
heterologus
c)
homozygous
d)
heterozygous
28.

How many males are shown in this pedigree?

a)
8
b)
5
c)
2
d)
16
29.

 How many kids did the mother and father from the first generation have?

a)
2
b)
4
c)
5
d)
6
30.

What percentage of the offspring will have this recessive disease?

a)
0%
b)
25%
c)
50%
d)
75%
31.

What percentage of the female offspring will be a carrier for this recessive disease?

a)
0%
b)
50%
c)
100%
d)
25%
32.

How are individuals III-2 and II-4 related?

a)
Cousins
b)
Dad and Daughter
c)
Uncle and Niece
d)
Grandpa and Granddaughter
33.

How many alleles does a child get from each parent for a trait?

a)

1

b)

2

c)

3

d)

4

34.

How many alleles does a person carry for a trait?

a)

1

b)

2

c)

3

d)

4

35.

Dominant alleles are represented by a ---

a)

capital letter.

b)

lowercase letter.

36.

On this pedigree, the allele for curly hair is dominant. The couple labeled 2 both have curly hair, but have a daughter who does not have curly hair. Therefore, we can tell from the chart that for the couple labeled 2 -

a)

the male is heterozygous and the female is heterozygous.

b)

the male is homozygous recessive and the female is homozygous dominant.

37.

Why do all the daughters in Generation II carry the colorblind gene?

a)

Because mom passed on the gene.

b)

Because dad passed on the X chromosome.

38.

The trait this pedigree traces is recessive because it skips a generation and individuals can be carriers. What is the most likely genotype for person III-3?

a)

GG

b)

Gg

c)

gg

39.

An image that displays homologous chromosomes within a nucleus is called a:

a)

Pedigree

b)

Karyotype

c)

Family Tree

d)

Cladogram

40.

In humans, chromosomes 1-22 are called:

a)

Autosomes

b)

Sex chromosomes

c)

Chromatids

d)

Carotenoids

41.

In humans, the 23rd pair of chromosomes are called:

a)

Autosomes

b)

Sex chromosomes

c)

Chromatids

d)

Gender chromosomes

42.

In this human karyotype, is the individual male or female?

a)

Male

b)

Female

43.

In this human karyotype, is the individual male or female?

a)

Male

b)

Female

44.

What 2 factors can a karyotype tell you?

a)

Gender

b)

Gene mutations

c)

Phenotype (physical appearance)

d)

Presence of chromosomal disorders

45.

A diagram that looks like a family tree and is used to track genes throughout generations is called a:

a)

Pedigree

b)

Karyotype

c)

Cladogram

d)

Phylogenetic Tree

46.

True or False? Pedigrees can be used to track multiple genes throughout a family's generations.

a)

True

b)

False

47.

If primarily males are affected, such as in the above pedigree, the trait is:

a)

Autosomal

b)

Sex-linked

c)

Dominant

d)

Recessive

48.

If many individuals are affected in the pedigree, then the trait is:

a)

Autosomal

b)

Sex-linked

c)

Dominant

d)

Recessive

49.

In the above pedigree, individual #1 is:

a)

Male

b)

Female

c)

Affected by the trait

d)

Unaffected by the trait

50.

If few individuals are affected in the pedigree, then the trait is:

a)

Autosomal

b)

Sex-linked

c)

Dominant

d)

Recessive

51.

The trait shown in the above pedigree is:

a)

Autosomal dominant

b)

Autosomal recessive

c)

Sex-linked dominant

d)

Sex-linked recessive

52.

The trait shown in the above pedigree is:

a)

Autosomal dominant

b)

Autosomal recessive

c)

Sex-linked dominant

d)

Sex-linked recessive

53.

In guinea pigs, black hair is dominant to white hair and short hair is dominant to long hair. What is the PHENOTYPE RATIO for the offspring in the following cross?

a)
9:3:3:1
b)
1:1:1:1
c)
4:2:2:5
d)
8:2:2:4
54.

Imagine the shaded individuals are those WITH a "hitchhikers thumb." What must be the genotype of individual II-1?

a)
TT
b)
tt
c)
Tt
d)
Impossible to tell
55.

The shaded individuals in the pedigree represent those with the expressed _____________ trait.

a)
Recessive
b)
Dominant
56.

What is the chromosomal condition of the individual whose karyotype is seen in the image?

a)
Trisomy 21 (Down Syndrome)
b)
Trisomy 13
c)
Trisomy 18
d)
Klinefelter's Syndrome
57.

What is the chromosomal condition of the individual whose karyotype is seen in the image?

a)
Turner's Syndrome
b)
Trisomy 21 (Down Syndrome)
c)
Trisomy 13
d)
Trisomy 18
58.

What is the gender of the individual whose karyotype is seen in the image?

a)
Male
b)
Female