WorksheetsPunnett Square & Pedigree Charts- Review
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
Gregor Mendel developed some basic principles of heredity by ______________.
a)
breeding fruit flies
b)
cutting off the tails of mice
c)
crossing pea plants
d)
growing bacteria in a laboratory
2.
Phenotype refers to the _________ of an individual
a)
genetic makeup
b)
physical appearance
c)
recessive alleles
d)
dominant alleles
3.
Which of these would best be described as a phenotype?
a)
blue eyes
b)
mutation
c)
Bb
d)
Tt
4.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
5.
Which term correctly describes an individual with a pair of the same alleles for a trait?
a)
homologous
b)
heterozygous
c)
homozygous
d)
heterologus
6.
An individual with two different alleles for a specific trait is said to be _____________.
a)
homozygous
b)
heterogenous
c)
homogenous
d)
heterozygous
7.
What is the phenotype for the recessive trait?
a)
brown eyes
b)
green eyes
c)
blue eyes
8.
Look at the Punnett Square. What's the probability of having the recessive offspring?
a)
100%
b)
75%
c)
50%
d)
25%
9.
Of 12 hamsters just born, 9 have brown fur and 3 have white fur. The trait for white fur is considered to be ________.
a)
recessive
b)
weak
c)
strong
d)
dominant
10.
What is this?
a)
Pedigree
b)
Karyotype
c)
Venn diagram
d)
Punnett Square
11.
What does a filled in square represent?
a)
Not affected Female
b)
Not affected Male
c)
Affected Male
d)
Affected Female
12.
How many females show the trait?
a)
1
b)
2
c)
3
d)
4
13.
How many females are in this pedigree?
a)
3
b)
4
c)
6
d)
7
14.
How many of the males in this pedigree show the trait being studied?
a)
2
b)
3
c)
4
d)
6
15.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
100 %
