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Genetics and Inheritance

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Select ALL options that describe phenotypes.

a)

AA

b)

bb

c)

homozygous

d)

blue eyes

e)

black fur

2.

Which genotype is homozygous dominant?

a)

AA

b)

aA

c)

Aa

d)

aa

3.

Long fur (L) is dominant to short fur (l) in rabbits. Which rabbits would have long fur?

a)

LL

b)

Ll

c)

ll

4.

In a certain flower, tall height (T) is dominant over short height (t). In the punnett square below, what belongs in the missing square?

a)

tt

b)

Tt

c)

Bb

d)

TT

5.

In bears, brown fur (B) is dominant over white fur (b).

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

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%

6.
An organism’s genetic makeup or allele combination.
a)
Genotype
b)
Phenotype
c)
Beanotype
d)
Notype
7.
An organism’s physical appearance, or visible traits. 
a)
Genotype
b)
Phenotype
c)
Beanotype
d)
Notype
8.

What is called when a organism has two different alleles for a trait. Example - Tt or Rr

a)

Heterozygous

b)

Homozygous

c)

Domozygous

d)

Thermozygous

9.

What is called when a organism has two identical alleles for a trait. Example - TT or tt.

a)

Heterozygous

b)

Homozygous

c)

Domozygous

d)

Thermozygous

10.
In a certain species of plant, the color purple (P) is dominant to the color white (p).
According to the Punnett Square, what is the probability of an offspring being purple?
a)
25%
b)
0%
c)
100%
d)
50%
11.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
12.

Select all options that show a heterozygous genotype.

a)

AA

b)

Tt

c)

pp

d)

Dd

13.

Sexual reproduction involves _________ parents and results in ___________ variation.

a)

1; lots of

b)

1; no

c)

2; lots of

d)

2; no

14.

For a given trait, you get ________ allele from you mom and ________ allele from your dad.

a)

1;1

b)

2;2

c)

it depends on the trait

15.

Long fur (L) is dominant to short fur (l) in rabbits. A certain rabbit named Hoppy McHopperton is heterozygous. What is his genotype?

a)

LL

b)

Ll

c)

ll