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Genetics Quiz

Total questions: 14

Worksheet time: 8mins

Name
Class
Date
1.

What is the term for having two alleles that are the same?

a)

Homozygous Recessive

b)

Homozygous

c)

Heterozygous

d)

Homozygous Dominant

2.

What is the term for having two alleles that are different?

a)

Homozygous Recessive

b)

Homozygous Dominant

c)

Heterozygous

d)

Homozygous

3.

What is the term for having two dominant alleles?

a)

Homozygous

b)

Homozygous Recessive

c)

Homozygous Dominant

d)

Heterozygous

4.

What is the term for having two recessive alleles?

a)

Homozygous

b)

Heterozygous

c)

Homozygous Recessive

d)

Homozygous Dominant

5.

What is the physical appearance of a characteristic called?

a)

Possible Phenotypes

b)

Phenotype

c)

Genotype

d)

Parent's Alleles

6.
Which is an example of a inherited trait
a)
eye color
b)
style of clothes
c)
hair style
d)
riding a bike
7.
Which gene is heterozygous?
a)
TT
b)
Tt
c)
rr
d)
YY
8.
What is a recessive allele?
a)
A trait that is always shown (capital letter)
b)
A trait that can be hidden (lower case letter)
c)
Alleles that are the same
d)
Alleles that are different
9.
The dominant trait as seen in this punnett square is
a)
yellow pea seeds
b)
green pea seeds
c)
there is no dominant seed
d)
Jolly green giant
10.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
11.

One uppercase and one lowercase letter are alleles for what type of trait?

a)

Homozygous

b)

Heterozygous (hybrid)

c)

Phenotype

d)

Allele

12.

How many offspring will show the recessive trait?

a)

0%

b)

25%

c)

50%

d)

75%

13.

How many are hybrids?

a)

0%

b)

25%

c)

50%

d)

100%

14.

What fraction of individuals will be homozygous dominant?

a)

1/3

b)

1/2

c)

2/3

d)

1/4