Worksheets6.1 Punnet Squares
Total questions: 30
Worksheet time: 34mins
Name
Class
Date
1.
HOMOZYGOUS
a)
same
b)
different
2.
HETEROZYGOUS
a)
same
b)
different
3.
traits that show up more often
a)
dominant
b)
recessive
4.
An organism's physical appearance or visible traits...
a)
genotype
b)
inherit
c)
gene
d)
phenotype
5.
True or False? One of a number of different forms of a gene is algae.
a)
True
b)
False
6.
True or False? The passing of traits from one parent to offspring is heredity.
a)
False
b)
True
7.
T - tall and t = short
In the punnett square below, what belongs in the missing square
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
8.
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%
9.
In certain species of plants, purple flowers (P) are dominant to white flowers (p). If two heterozygous plants are crossed, what will be the phenotype of the offspring?
a)
100% purple flowers
b)
100% white flowers
c)
75% white flowers, 25% purple flowers
d)
25% white flowers, 75% purple flowers
10.
Red flower (R) color is dominant to white flower (r) color in rose plants. What is the expected phenotypic results of a cross between two heterozygous (Rr) rose plants?
a)
100% red
b)
75% red, 25% white
c)
50% red, 50% white
d)
75% white, 25% red
11.
If you are a boy, what percent of your genes did you get from your dad?
a)
25%
b)
50%
c)
75%
d)
100%
12.
A permanent change in DNA is called what?
a)
Genetic disorders
b)
Mutation
c)
Gene Expression
d)
Mutagen
13.
______ is the physical expression of genes
a)
DNA
b)
Chromosome
c)
Alleles
d)
Phenotype
14.
______ is the set of genes possessed by someone
a)
DNA
b)
Chromosome
c)
Genotype
d)
Phenotype
15.
B=Blonde Hair b=Brown Hair
If a person was BB they would have
If a person was BB they would have
a)
Blonde Hair
b)
Brown Hair
16.
B=Blonde Hair b=Brown Hair
If a person was Bb they would have
If a person was Bb they would have
a)
Blonde Hair
b)
Brown Hair
17.
B=Blonde Hair b=Brown Hair
If a person was bb they would have
If a person was bb they would have
a)
Blonde Hair
b)
Brown Hair
18.
Which of the following are Homozygous Dominant?
a)
Aa
b)
Bc
c)
BC
d)
DD
19.
Which of the following are Homozygous Recessive?
a)
Aa
b)
cc
c)
BC
d)
DD
20.
Which of the following are Heterozygous
a)
Aa
b)
cc
c)
BC
d)
DD
21.
Dominant Traits show up
a)
If a person has that allele
b)
Only when a person has two copies of the allele
c)
When they want to
22.
Recessive Traits are expressed (shown).
a)
If a person carries that allele
b)
Only when a person has two copies of the allele
c)
Late
23.
Who created the Punnett Square?
a)
Mendel
b)
Einstein
c)
Napoleon
d)
Mona Lisa
24.
What plants did Gregor Mendel use to study Punnett Squares?
a)
Peas
b)
Carrots
c)
Cucumber
d)
Roses
25.
What tool can we use to predict what traits offspring will have?
a)
Punnett Square
b)
Wardlaw Rectangle
c)
Mendel Circle
d)
Preston Square
26.
What % of offspring are yellow?
a)
50
b)
25
c)
75
d)
100
27.
What % of offspring are green?
a)
50
b)
25
c)
75
d)
100
28.
What % of offspring are heterozygous?
a)
50
b)
25
c)
75
d)
100
29.
What % of offspring are Homozygous Dominant?
a)
50
b)
25
c)
75
d)
0
30.
What % of offspring are Homozygous Recessive?
a)
50
b)
25
c)
75
d)
0
100 %
