wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Codominance and Incomplete Dominance

Total questions: 20

Worksheet time: 31mins

Name
Class
Date
1.

This type of inheritance pattern is a MIXTURE of two traits. This is known as ---

a)

incomplete dominance.

b)

codominance

2.

When one allele is not dominant over the other, resulting in both traits expressed in a heterozygous individual.....

a)

Incomplete Dominance

b)

Codominance

3.

When one allele is not dominant over another, resulting in a blended phenotype for heterozygous offspring is considered....

a)

Incomplete Dominance

b)

Codominance

4.

A woman with curly hair and a man with straight hair produced a child with wavy hair:

a)

Incomplete dominance

b)

Codominance

c)

Complete dominance

5.

A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?

a)

Incomplete dominance

b)

Codominance

6.

This is an example of ---

a)

Incomplete dominance

b)

Codominance

7.

This is an example of ---

a)

Incomplete dominance

b)

Codominance

8.

What does this Punnett square and the probabilities of the ofspring represent?

a)

incomplete dominance

b)

codominance

9.
this image is an example of
a)
codominance
b)
dominance
c)
incomplete dominance
10.

A red flowered plant (RR) is crossed with a white flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have red (RR) flowers?

a)

0%

b)

25%

c)

50%

d)

100%

11.

A long-haired female rabbit and a short-haired male rabbit produced this offspring with a medium-length coat:

a)

Incomplete dominance

b)

Codominance

c)

Complete dominance

12.
this image is an example of
a)
codominance
b)
dominance
c)
incomplete dominance
13.
If you cross a black chicken with a white chicken, only checkered chickens would be produced.  What kind of inheritance pattern does this follow?
a)
incomplete Dominance
b)
Co-Dominance
14.
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)
50%
b)
0%
c)
25%
d)
100%
15.
In some carnations, flower color exhibits codominance.  Identify the correct genotypes for red, white, and speckled carnations.
a)
Red = RR, white = rr, speckled = Rr
b)
Red = RR, white = WW, speckled = rw
c)
Red = RR, white = ww, Speckled = Rw
d)
Red = RR, white = WW, speckled = RW
16.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
17.

A black male and white female produced this grey offspring:

a)

Incomplete dominance

b)

Codominance

c)

Complete dominance

18.

Radish color is incompletely dominant, red and white are pure breeding colors. While heterozygous are purple.


Cros a red radish with a white.

a)

4 purple

b)

1 red, 2 purple, 1 white

c)

2 red, 2 white

d)

1 red, 1 purple, 2 white

19.

What type of inheritance pattern is shown here?

a)

Codominance

b)

Incomplete dominance

20.
How are Incomplete Dominance and Co Dominance different than a normal Mendelian cross?
a)
There is no difference
b)
The heterozygous genotype has a unique phenotype
c)
There is no heterozygous genotype
d)
There is only one phenotype regardless of genotype.