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WorksheetsPunnett square
Total questions: 14
Worksheet time: 36mins
Name
Class
Date
1.
This image shows a...
a)
Punnett Square
b)
Phenotype
c)
Genotype
d)
Dominant allele
2.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
3.
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%
4.
An organism’s physical appearance, or visible traits.
a)
Genotype
b)
Phenotype
c)
Beanotype
d)
Notype
5.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
6.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
7.
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%
8.
What are the possible genotypes for this cross?
(Click the picture to see it without the text)
(Click the picture to see it without the text)
a)
TT = 25% Tt= 50% tt=25%
b)
all tall
c)
TT= 75% tt = 25%
d)
Tt = 100%
9.
What does a Punnett Square do?
a)
tell you exactly what your offspring will look like
b)
increase the chance you pass on recessive traits
c)
predict genotypes and phenotypes in offspring
d)
have no purpose but for Mrs. Peluso to give us extra assignments
10.
What genotype would go in box 2?
a)
BB
b)
Bb
c)
bb
11.
What is the probability of heterozygous offspring?
a)
25%
b)
50%
c)
0%
d)
100%
12.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
13.
A purebred organism is also known as
a)
heterozygous
b)
genotype
c)
phenotype
d)
homozygous (dominant or recessive)
14.
A hybrid organism is also know as ........
a)
heterozygous
b)
genotype
c)
phenotype
d)
homozygous (dominant or recessive)
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