wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Biology Genetics Quiz #2

Total questions: 16

Worksheet time: 1hrs 20mins

Name
Class
Date
1.
In a certain species of animal, black fur (B) is dominant over tan fur (b).  If two heterozygous parents were crossed what percentage of the offspring would be Homozygous dominant?
a)
0%
b)
25%
c)
50%
d)
75%
2.

Snapdragon flowers display incomplete dominance. Red is dominant to white, but heterozygotes have pink flowers. If a red snapdragon and a pink snapdragon were crossed, what percentage of the offspring would be Red?

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

3.

In chickens, feather color is codominant. If a black chicken BB is mated with one that is black and white (BW) what are the chances of having a chicken that is black and white?

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

4.

A red flowered plant breeds with a White flowered plant. The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have pink flowers?

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

5.

Round seeds (R) are dominant to wrinkled seeds (r) in pea plants. If two heterozygous parents are crossed, what is the genotypic ratio?

a)

1:2:2

b)

2:2

c)

3:1

d)

1:2:1

6.

Sickle cell anemia is an autosomal recessive disorder that affects the ability of blood to clot. If a woman with sickle cell anemia has children with a man who is heterozygous for sickle cell, what are the chances their child will have the disorder?

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

7.

Blood type exhibits multiple alleles and codominance. There are 4 blood types: A, B, AB, and O. If a heterozygous type B man and a type AB woman want to have a child, what are the chances that they will have a type B child?

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

8.

A man who is homozygous for type A blood marries a woman who is heterozygous for type B. What are the possible genotypes of their children?

a)

AA, AB, AO

b)

BB, AB

c)

AB, AO

d)

Ab

9.

Duchenne muscular dystrophy (DMD) is a recessive sex-linked disorder which results in muscle degeneration. If a mother who is a carrier has children with a man who does not have DMD, what are the chances of their son having the disorder?

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

10.
Give the genotype for person III-3
a)
GG
b)
Gg
c)
gg
11.
What is the mode of inheritance shown here?
a)
 Recessive
b)
Sex Linked
c)
 Dominant
12.
Is this trait (the shaded individuals) dominant or recessive?
a)
dominant
b)
recessive
13.
Hemophilia is a recessive x-linked disorder.
Which genotype represents a female who is a carrier for hemophilia?
a)
XHXh
b)
XhXh
c)
XHXH
d)
XhY
14.
Hemophilia is a recessive x-linked disorder.
Which genotype represents a male with hemophilia?
a)
XHXh
b)
XhXh
c)
XHY
d)
XhY
15.

A woman has the genotype of ii for her blood type. Her mother is heterozygous for A type. Which genotype can her father be?

a)

IBi

b)

IBIB

c)

IAIB

d)

IAIA

16.

Fur color in guinea pigs is a codominant trait. A guinea pig with black and white fur has offspring with a guinea pig with white fur. What are the chances their baby will have black fur?

a)

0/4

b)

1/4

c)

2/4

d)

3/4

e)

4/4