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Mendelian and Non-Mendelian Genetics Quiz

Total questions: 38

Worksheet time: 1hrs 16mins

Name
Class
Date
1.

The blending of two traits in which one is not completely dominant over the other is known as ---

a)

incomplete dominance

b)

codominance

2.

An inheritance pattern in which both alleles for a gene are expressed in the offspring so that both traits show up on its body is known as ---

a)

Codominance

b)

Incomplete dominance

3.

What type of inheritance pattern is shown here?

a)

Codominance

b)

Incomplete dominance

4.

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

5.

If you cross a black chicken with a white chicken and only black AND white feathered chickens are produced, then feather color follows the inheritance pattern of ---

a)

Incomplete dominance

b)

Codominance

6.

The green fish offspring in this image is an example of ---

a)

Incomplete dominance

b)

Codominance

7.

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 pink (RW) flowers?

a)

0%

b)

25%

c)

50%

d)

100%

8.

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%

9.

The hair form gene shows incomplete dominance. If your genotype is SS, you will have straight hair. If your genotype is CC, you will have curly hair. If your genotype is SC, you will have wavy hair. Mr. and Mrs. Anderson both have wavy hair (SC). What percentage of their children will also have wavy hair (SC)?

a)

25%

b)

50%

c)

75%

d)

100%

10.

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

a)

25%

b)

50%

c)

75%

d)

100%

11.

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

12.

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

13.

Radish color is completely 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

14.

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


Cros a red radish with a purple.

a)

4 purple

b)

1 red, 2 purple, 1 white

c)

2 red, 2 purple

d)

1 red, 1 purple, 2 white

15.

Match the following

a)

Incomplete

Dominance

1.

Partial dominant trait

b)

Codominance

2.

Get to see both dominant traits at the same time

c)

A blending

3.

Incomplete dominance

d)

strips and spots

4.

Codominance

16.

What trait is being shown?

a)

Incomplete

b)

Codominance

17.

What trait is being shown?

a)

Incomplete

b)

Codominance

18.
T4 - What genotype is missing from this Punnett Square?
a)
RrYy
b)
RRYY
c)
rryy
d)
RrYY
19.
If you have a parent who has GgBb as their genotype, what are the possible alleles they could donate to their gametes?
a)
GB, Gb, gB, gb
b)
GB, GB, gb, gb
c)
Gb, Gb, Gb, GB
d)
GG, BB, gg, bb
20.
T4 - Based off this Punnett Square, what fraction of the offspring will have wrinkled, yellow seeds?
a)
9/16
b)
3/16
c)
1/16
d)
16/16
21.
Assume mom's gametes are on the left, what is her genotype?
a)
TTZz
b)
TtZz
c)
ttZZ
d)
TtZZ
22.
In cacti, long arms (A) are dominant to short arms (a).  Suppose 2 heterozygous cacti are crossed.  What percentage of their offspring are expected to have short arms?
a)
0%
b)
25%
c)
75%
d)
100%
23.
If T=Tall & t=short, what is the genotypic ratio?
a)
1:3
b)
3:1
c)
1:2:1
d)
2:2
24.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
25.
Purple is dominant to white. A heterozygous purple flower is crossed with a white flower. What are the genotypes and phenotypes of the offspring?
a)
100% Pp (purple)
b)
50% Pp (purple); 50% pp (white)
c)
75% Pp (purple); 25% pp (white)
d)
25% PP, 50% Pp, 25% pp
75% purple, 25% white
26.
Tall is dominant to short. A homozygous tall plant is crossed with a short plant. What will be the phenotypes of the offspring?
a)
100% tall
b)
50% tall, 50% short
c)
75% tall, 25% short
d)
25% tall, 75% short
27.
AA is an example of 
a)
homozygous dominant
b)
homozygous recessive
c)
heterozygous
d)
none of these
28.
bb is an example of
a)
homozygous dominant
b)
homozygous recessive
c)
heterozygous
d)
none of these
29.
Which of the following identifies the gametes?
a)
A
b)
B
c)
C
d)
D
30.
Which of the following identifies the phenotypes?
a)
A
b)
B
c)
C
d)
D
31.

what is the phenotypic ratio?

a)

1:2:1

b)

3:1

c)

1:1

32.

Match the following

a)

phenotype examples

1.

green round, yellow wrinkled

b)

genotype examples

2.

GgRr, GGRr, ggrr

c)

phenotype definition

3.

physical or "expressed" traits

d)

genotype definition

4.

allele (letter) combinations

33.

what is the genotypic ratio?

a)

1:2:1

b)

3:1

c)

1:1

34.

Match the following

a)

homozygous dominant

1.

GG

b)

heterozygous

2.

Gg

c)

homozygous recessive

3.

gg

35.

What goes in box 15

a)

aabb

b)

AABB

c)

aaBB

d)

AAbb

36.
What goes in box 6
a)
AaBB
b)
AABB
c)
aaBB
d)
AAbb
37.
Using the dihybrid cross and key provided, what is the probability of the offspring being tall and white?
a)
9
b)
2
c)
3
d)
6
38.
The genetic make up of this flower is ________.
a)
homozygous recessive
b)
heterozygous
c)
homozygous dominant
d)
white

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