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Codominance vs. Incomplete Dominance

Total questions: 16

Worksheet time: 20mins

Name
Class
Date
1.
This is an example of ___________?
a)
Incomplete dominance
b)
Co-Dominance
2.
What type of inheritance do two alleles have if their traits blend together? 
a)
Incomplete Dominance
b)
Co-Dominance
3.

In cattle red coats are represented as RR, and white coats are represented as WW.


What is the genotype for Roan color?

a)

RR

b)

RW

c)

WW

4.
this image is an example of
a)
codominance
b)
dominance
c)
incomplete dominance
5.
this image is an example of
a)
codominance
b)
dominance
c)
incomplete dominance
6.
How many alleles does an individual have for each trait?
a)
1
b)
2
c)
3
d)
4
7.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
8.
A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance.  What percentage of the offspring will have pink (RW) flowers?
a)
0%
b)
25%
c)
50%
d)
100%
9.
This is an example of ___________.
a)
Incomplete Dominance
b)
Codominance
10.

Codominance occurs in calico cats, which allows for the Black and Tan colors to show. What percentage of the offspring will be calico (black and tan spotted)?

a)

25

b)

50

c)

75

d)

100

11.

Incomplete dominance occurs in cats, which allows them to be Black, White, or gray as shown on this Punnett square. What percentage of the offspring will be white?

a)

25

b)

50

c)

0

d)

100

12.

Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB).


Cross a red flower with a speckled flower. What is the phenotypic ratio?

a)

2 red, 2 speckled

b)

2 red, 2 blue

c)

2 blue, 2 speckled

13.

Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB).


Cross two speckled flowers.

a)

1 red, 2 speckled, 1 blue

b)

2 red, 2 blue

c)

2 blue, 2 speckled

d)

1 red, 1 speckled, 2 blue

14.

Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB).


Cross a red flower with a blue flower.

a)

1 red, 2 speckled, 1 blue

b)

2 red, 2 blue

c)

4 speckled

d)

1 red, 1 speckled, 2 blue

15.

When the offspring has a mix or blend of the parents' traits.

a)

Codominance

b)

Incomplete Dominance

c)

Complete Dominance

16.

When BOTH traits show up in the offspring.

a)

Codominance

b)

Incomplete Dominance

c)

Complete Dominance