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McCarson's Punnet Square Quiz

Total questions: 45

Worksheet time: 6hrs 5mins

Name
Class
Date
1.
bb is a _________________ genotype
a)
Dominant
b)
Homozygous
c)
Genotype
d)
Phenotype
2.
In rabbits, black fur (B) is dominant over brown fur (b). If a rabbit has brown fur, what can you conclude about its genotype?
a)
It is BB.
b)
It is Bb
c)
It is brown
d)
It is bb.
3.
An organism's _______ describes its genetic composition. An organism's _______ describes its appearance or observable characteristics.
a)
phenotype; genotype
b)
species; heredity
c)
heredity; species
d)
genotype; phenotype
4.

What is correct probability

a)

TT = 25% Tt= 50% tt=25%

b)

all tall

c)

TT= 75% tt = 25%

d)

Tt = 100%

5.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
6.
Where do your inherited genes come from?
a)
offspring
b)
parents
c)
gametes
d)
grandchildren
7.
This type of allele masks the recessive allele and is capital ________________
a)
Dominant
b)
Homozygous
c)
Genotype
d)
Phenotype
8.
The dominant trait is
a)
yellow pea seeds
b)
green pea seeds
c)
there is no dominant seed
d)
Jolly green giant
9.
What is the probability of homozygous dominant offspring?
a)
0%
b)
100%
c)
50%
d)
25%
10.
What is the probability of homozygous recessive offspring?
a)
0%
b)
100%
c)
50%
d)
25%
11.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
12.

B = brown fur b = white fur

In the Punnett square, what is the probability for white fur?

a)

0%

b)

25%

c)

50%

d)

75%

13.

A heterozygous long-tusked elephant is crossed with a homozygous recessive short-tusked elephant. What is the probability of the offspring having short tusks? (a)  

Choose from the below words
0%
25%
50%
75%
14.

What is the probability of a purple-horned unicorn if a heterozygous pink-horned unicorn is crossed with a heterozygous pink-horned unicorn? (a)  

Choose from the below words
0%
25%
50%
75%
15.

Two parents have a heterozygous genotype for eye color. What is the chance of having a blue eye baby?

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

16.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
17.
What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 
a)
50 % Brown Hair and 50% Blond Hair 
b)
25 % Brown Hair and 75% Blond Hair 
c)
75 % Brown Hair and 25% Blond Hair 
d)
0% Brown Hair and 100% Blond Hair 
18.
The physical appearance of a trait is known as the-
a)
genotype
b)
phenotype
c)
characteristics
d)
intelligence
19.
The two-letter code that describes the genetic traits of an organism is called a-
a)
Phenotype
b)
Genotype
c)
Physical Appearance
d)
Intelligence
20.
An allele that is hidden when the dominant allele is present.
a)
Dominant Allele
b)
Gene
c)
Recessive Allele
d)
Probability
21.

Whose traits are on the outside of the Punnett square?

a)

Mom

b)

Parents

c)

Dad

d)

Offspring

22.

What percent of offspring show the recessive trait?

a)

25

b)

50

c)

75

d)

100

23.

The study of how traits are inherited.

a)

genotype

b)

phenotype

c)

heredity

d)

genetics

24.

Made of DNA that contains all the information an organism needs to grow and function.

a)

allele

b)

chromosome

c)

gene

d)

DNA

25.

What is the top parent's genotype?

a)

homozygous dominant

b)

homozygous reccessive

c)

heterozygous

d)

superzygous

26.

Which is homozygous dominant?

a)

AA

b)

Aa

c)

aa

d)

None of them

27.

Which is homozygous recessive?

a)

AA

b)

Aa

c)

aa

d)

None of them

28.

What is this diagram called?

a)

Venn diagram

b)

Punnett Square

c)

Probability Chart

d)

Phylogenetic Tree

29.

Father of genetics; 1st person to use probability to explain heredity.

a)

Mendeleev

b)

Mendel

c)

Darwin

d)

Currie

30.

The study of how traits are inherited.

a)

genotype

b)

phenotype

c)

heredity

d)

genetics

31.

Capital letter; this represents the trait that always shows.

a)

recessive

b)

heterozygous

c)

dominant

d)

homozygous

32.

Lower case letter; this represents what is hidden when a dominant allele is present

a)

recessive

b)

homozygous

c)

dominant

d)

heterozygous

33.

Whose traits are on the outside of the Punnett square?

a)

Mom

b)

Parents

c)

Dad

d)

Offspring

34.

What percent of offspring show the recessive trait?

a)

25

b)

50

c)

75

d)

100

35.

What is the top parent's genotype?

a)

homozygous dominant

b)

homozygous reccessive

c)

heterozygous

d)

superzygous

36.

Which is homozygous dominant?

a)

AA

b)

Aa

c)

aa

d)

None of them

37.

Which is homozygous recessive?

a)

AA

b)

Aa

c)

aa

d)

None of them

38.

Which of these is a genotype?

a)

Green Peas

b)

ATTAGCCG

c)

Gg

d)

None of these

39.

Which of these is a phenotype?

a)

Green peas

b)

AAATCCGCTC

c)

Gg

d)

None of these

40.

The father's genotype is _____________.

a)

homozygous dominant

b)

heterozygous

c)

homozygous recessive

d)

None of these

41.

The mother's genotype is _____________.

a)

homozygous dominant

b)

heterozygous

c)

homozygous recessive

d)

none of these

42.

What percentage of these offspring will be homozygous dominant?

a)

25

b)

50

c)

75

d)

100

43.

What percentage of these offspring will be heterozygous?

a)

25

b)

50

c)

75

d)

0

44.

Mutations are always bad

a)

true

b)

false

45.

What describes a change in the DNA sequence?

a)

Transcription

b)

Translation

c)

DNA replication

d)

Mutation

e)

Apoptosis

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