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Heredity Concept 3 Mutations and Pedigrees

Total questions: 20

Worksheet time: 16mins

Name
Class
Date
1.
Does this pedigree show a dominant or recessive trait?
a)
Dominant
b)
Recessive
2.
This pedigree represents the inheritance of hemophilia in this family. How many of the females have the hemophilia trait?
a)
8
b)
5
c)
2
d)
3
3.
How many females are in this pedigree?
a)
3
b)
4
c)
6
d)
7
4.

A point mutation where DNA adenine (A)

is replaced by thymine (T) resulting in a single amino acid change during translation(affects blood cell

shape and function)

a)

Encephelitis

b)

Hemophilia

c)

Sickle Cell Anemia

d)

Influenza

5.
How are individuals I-2 and III-5 related?
a)
Grandpa and grandson
b)
Mom and son
c)
Uncle and nephew
d)
Grandma and grandson
6.

On a pedigree, which shape represents a female?

a)

star

b)

square

c)

circle

d)

triangle

7.

How many children did the couple in the first generation have?

a)

3

b)

5

c)

4

d)

7

8.

What is the gender of this person?

a)

Male

b)

Female

9.

On what chromosome number is the mutation?

a)

21

b)

18

c)

7

d)

All

10.

What type of mutation is shown?

a)

Duplication

b)

Deletion

c)

Inversion

d)

Translocation

11.

What type of mutation is shown?

a)

Duplication

b)

Deletion

c)

Inversion

d)

Translocation

12.

What type of mutation is shown?

a)

Duplication

b)

Deletion

c)

Inversion

d)

Translocation

13.

What type of mutation is shown?

a)

Duplication

b)

Deletion

c)

Inversion

d)

Translocation

14.

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

a)

1

b)

2

c)

3

d)

4

15.

How many alleles does a person carry for a trait?

a)

1

b)

2

c)

3

d)

4

16.

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

17.
There are no carriers for Huntington's Disease- you either have it or you don't. Is Huntington's disease caused by a dominant or recessive trait?
a)
Dominant
b)
Recessive
18.
Huntington's Disease is a dominant trait.
What is the correct genotype for individual I-2?
a)
HH
b)
Hh
c)
hh
d)
H_
19.
What is the genotype of the mother?
a)
BB
b)
bb
c)
Bb
d)
BB or Bb
20.
What is the genotype of the father?
a)
AA
b)
aa
c)
Aa
d)
AA or aa