NEW
Font size
S
M
L
XL
WorksheetsPunnett Square Practice
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What are the possible phenotype(s) 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
2.
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%
3.
What is the yellow seed genotype?
a)
aa
b)
Aa
c)
AA
d)
AA or Aa
4.
What genotype would go in box 2?
a)
BB
b)
Bb
c)
bb
5.
What is the probability of heterozygous offspring?
a)
0%
b)
100%
c)
50%
d)
25%
6.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
7.
What is the possibility of this offspring having the dominant trait?
a)
50%
b)
75%
c)
25%
d)
0%
8.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
9.
What is the phenotype of the heterozygous parent in the punnett square?
a)
green
b)
yellow
c)
hybrid
d)
purebred
10.
B = brown eyes
b = blue eyes
What is true about these two brothers that have brown eyes?
One has genotype BB the other Bb.
b = blue eyes
What is true about these two brothers that have brown eyes?
One has genotype BB the other Bb.
a)
they have same phenotype and genotype
b)
they have different genotypes and phenotypes
c)
they have same phenotype but different genotypes
d)
they have same genotype but different phenotypes
Reset
