WorksheetsPunnett Square Practice
Total questions: 10
Worksheet time: 20mins
Name
Class
Date
1.
Dominant or recessive?
tt
tt
a)
Dominant
b)
Recessive
2.
Dominant or recessive?
Dd
Dd
a)
Dominant
b)
recessive
c)
neither
d)
homozygous
3.
What should students use to identify the percent chance of a trait being passed down from a parent to its offspring?
a)
a graph
b)
a flow chart
c)
a data table
d)
a Punnett square
4.
B = brown fur b = white fur
In the punnett square, what is the probability for white fur?
In the punnett square, what is the probability for white fur?
a)
0%
b)
25%
c)
50%
d)
75%
5.
Which of the following is a heterozygous genotype?
a)
Gg
b)
UU
c)
pp
6.
Fill in the Yellow Box
a)
Bb
b)
BB
c)
bb
7.
What is the mother's genotype?
a)
DD
b)
Dd
c)
dd
8.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
9.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
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?
According to the Punnett Square, what is the probability of an offspring being purple?
a)
25%
b)
0%
c)
100%
d)
50%
100 %
