Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Simple Genetics and complex genetics (no disorders)

Total questions: 133

Worksheet time: 3hrs 23mins

Name
Class
Date
1.
Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.
a)
DNA
b)
protein
c)
RNA
d)
glucose nucleic acid (GNA)
2.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
3.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both 
4.
What is the definition of genotype?
a)
The physical expression of a trait
b)
The genetic combination of alleles 
c)
the genes on a DNA strand
5.
Which of the following is a phenotype?
a)
Bb
b)
Black fur
6.
What is the percentage of offspring that have green pods?
a)
100%
b)
75%
c)
50%
d)
25%
7.
What percentage of the offspring in the punnett square are shown as a hybrid?
a)
100%
b)
75%
c)
50%
d)
25%
8.
What is the phenotype of the heterozygous parent in the punnett square?
a)
green
b)
yellow
c)
hybrid
d)
purebred
9.
In this punnett square, which is the dominant trait?
The B stands for bud.
a)
purple flower bud
b)
white flower bud
c)
dominant
d)
recessive
10.
G = green, g = yellow
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
11.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
12.
Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?
a)
Purebred
b)
Hybrid
13.
Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.
a)
DNA
b)
protein
c)
RNA
d)
glucose nucleic acid (GNA)
14.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
15.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both 
16.
Which of the following is a phenotype?
a)
Bb
b)
Black fur
17.
What is the percentage of offspring that have green pods?
a)
100%
b)
75%
c)
50%
d)
25%
18.
What is the phenotype of the heterozygous parent in the punnett square?
a)
green
b)
yellow
c)
hybrid
d)
purebred
19.
In this punnett square, which is the dominant trait?
The B stands for bud.
a)
purple flower bud
b)
white flower bud
c)
dominant
d)
recessive
20.
G = green, g = yellow
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
21.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
22.
Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?
a)
Purebred
b)
Hybrid
23.

Different versions of a gene are known as _____.

a)

Alleles

b)

Genotype

c)

Phenotype

24.

How many copies of each gene does a person have?

a)

1

b)

2

c)

3

d)

4

25.
What is heredity?
a)
A kind of genetic disorder
b)
The way DNA divides
c)
A trait you inherit from your parents
d)
The passing down of traits from parents to children
26.
Besides genetics, what other factors are responsible for how you will grow and develop?
a)
How people treat you
b)
How hard you study
c)
Nutrition and environment
d)
What your parents look like
27.
Which of your body cells contain DNA?
a)
Only your reproductive cells, like egg or sperm
b)
Only your blood cells
c)
Only your bone cells
d)
Most all of the cells in your body
28.
Put in order smallest to largest:
a)
Chromosome - DNA - Gene
b)
Gene - DNA - Chromosome 
c)
DNA - Gene  Chromosome
d)
Chromosome - Gene  - DNA
29.
One cat carries heterozygous, long-haired traits (Ss), and its mate carries homozygous short-haired traits (ss). Use a Punnett square to determine the probability of one of their offspring having long hair.
a)
100%
b)
75%
c)
50%
d)
25%
30.
One flower is homozygous red (RR) and it is crossed with a homozygous white (rr) plant. Use a Punnett square to determine the probability of one of their offspring having a red color.
a)
100%
b)
75%
c)
50%
d)
25%
31.
Long ears (E) are dominant over short ears (e).  What's the long eared parent's genotype?
a)
EE
b)
Ee
c)
ee
d)
can't tell
32.
What type of letters are used to show a trait is dominant?
a)
capital
b)
lowercase
33.
A red flowered plant (RR) is crossed with a white flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance.  What percentage of the offspring will have pink (RW) flowers?
a)
0%
b)
25%
c)
50%
d)
100%
34.
What type of inheritance do two alleles have if their traits blend together? 
a)
Incomplete Dominance
b)
Co-Dominance
35.
This is an example of ___________?
a)
Incomplete dominance
b)
Co-Dominance
36.

What type of inheritance do two alleles have if their traits blend together?

a)

Incomplete Dominance

b)

Co-Dominance

c)

Mendelian Inheritance (Complete Dominance)

d)

Homozygous Inheritance

37.
This is an example of ___________.
a)
 Incomplete Dominance
b)
 Codominance
38.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)
Incomplete Dominance
b)
Co dominance
39.
This is an example of ___________.
a)
Incomplete Dominance
b)
Codominance
40.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
41.
If you cross a black chicken with a white chicken, only checkered chickens would be produced.  What kind of inheritance pattern does this follow?
a)
incomplete Dominance
b)
Co-Dominance
42.
Which type of inheritance causes both traits to be expressed equally in the heterozygote?
a)
Complete Dominance
b)
Incomplete Dominance
c)
Co-Dominance
d)
Sex-linked
43.
In chickens, feather color is codominant.  If a black chicken BB is mated with one that is black and white (BW) what are the chances of having a chicken that is black and white?
a)
50%
b)
0%
c)
25%
d)
100%
44.
In some carnations, flower color exhibits codominance.  Identify the correct genotypes for red, white, and speckled carnations.
a)
Red = RR, white = rr, speckled = Rr
b)
Red = RR, white = WW, speckled = rw
c)
Red = RR, white = ww, Speckled = Rw
d)
Red = RR, white = WW, speckled = RW
45.
Which of the following is a hybrid?
a)
BB
b)
bb
c)
Bb
46.
In Andalusian fowls, black individuals (BB) and white individuals (bb) are homozygous. Heterozygous individuals are grey (Bb).  
Cross a black fowl with a white fowl. What is the phenotype ratio?
a)
4 black: 0 grey: 0 white
b)
2 black: 2 grey: 0 white
c)
0 black: 4 grey: 0 white
d)
0 black: 2 grey: 2 white
47.
In Andalusian fowls, black individuals (BB) and white individuals (bb) are homozygous. Heterozygous individuals are grey (Bb).  
What is the genotype ratio for a cross between a grey fowl and a white fowl?
a)
2 BB: 2 Bb: 0 bb
b)
0 BB: 4 Bb: 0 bb
c)
0 BB: 2 Bb: 2 b
d)
1 BB: 2 Bb: 1 bb
48.
In some carnations, flower color exhibits codominance. When crosses, Red (R) and white (W) flowers make speckled flowers (RW) that show both colors.
Complete a cross between 2 speckled flowers and find the genotype ratio.
a)
0 RR: 4 RW: 0 WW
b)
2 RR: 2 RW: 0 WW
c)
1 RR: 2 RW: 1 WW
d)
0 RR: 2 RW: 2 WW
49.
What type of inheritance do two alleles have if their traits blend together? 
a)
Incomplete Dominance
b)
Co-Dominance
c)
Mendelian Inheritance
d)
Homozygous Inheritance
50.
How are Incomplete Dominance and Co Dominance different than a normal Mendelian cross?
a)
There is no difference
b)
The heterozygous genotype has a unique phenotype
c)
There is no heterozygous genotype
d)
There is only one phenotype regardless of genotype.
51.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)
Incomplete Dominance
b)
Co dominance
c)
Independent assortment
d)
Recessive inheritance
52.
A plant shows incomplete dominance in size. A tall plant (TT) is crossed with a medium plant (TS). What fraction of plants will also be tall?
a)
100 %
b)
75%
c)
50%
d)
25%
53.
A roan cow shows co-dominance in fur color (orange and white). What is the phenotype ratio expected if a roan cow and a roan steer mate together?
a)
4: Orange and White
b)
1: Orange : 1 White
c)
2 Orange: 2 Orange and White: 0 White
d)
1: Orange: 2 Orange and White: 1 White
54.
A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance.  What percentage of the offspring will have pink (RW) flowers?
a)
0%
b)
25%
c)
50%
d)
100%
55.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
56.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
d)
recessive pattern
57.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
58.
Snap dragon color is a incomplete dominant trait.  A red flower (RR) is crossed with white flower (rr)? What color are flowers that are Rr?
a)
Red
b)
Red and White
c)
White
d)
Pink
59.
Which genotype represents a sickle cell carrier? (Remember it is recessive)
a)
SS
b)
ss
c)
Ss
60.
Which genotype represents a patient that suffers from sickle cell disease? (it is recessive)
a)
ss
b)
Ss
c)
SS
d)
sy
61.
How many copies of the sickle cell gene are needed for a person to have the disorder?
a)
0
b)
1
c)
2
d)
3
62.
Sickle red blood cells have a decreased ability to carry 
a)
nutrients
b)
wastes
c)
oxygen
d)
proteins
63.

A group of disorders that affects hemoglobin, the molecule in red blood cells that delivers oxygen to cells throughout the body.

a)

Sickle Cell Disease

b)

Hemophilia

c)

HIV

d)

Cystic Fibrosis

64.

When you look at the cells of individuals with sickle cell anemia, what do you expect to see?

a)

C-shaped cells

b)

S-shaped cells

c)

Disk-Shaped Cells

d)

Globular shaped cells

e)

Sick cells

65.

Normal RBC

a)

A

b)

B

66.

Sickled RBC

a)

A

b)

B

67.
blood types consist of 4 different alleles.
a)
false
b)
true
68.

In a heterozygous offspring, there is a blending of the traits.

a)

codominance

b)

incomplete dominance

c)

polygenetics

d)

multiple alleles

e)

sex linked

69.

In a heterozygous offspring, both traits are expressed at the same time.

a)

codominance

b)

incomplete dominance

c)

polygenetics

d)

multiple alleles

e)

sex linked

70.

When a trait is controlled by more that one gene and a variety of phenotypes can be seen.

a)

codominance

b)

incomplete dominance

c)

polygenetics

d)

multiple alleles

e)

sex linked

71.

When there are more than 2 alleles for a specific trait.

a)

codominance

b)

incomplete dominance

c)

polygenetics

d)

multiple alleles

e)

sex linked

72.

Genes (or traits) that are carried/passed down on the X or Y chromosome.

a)

codominance

b)

incomplete dominance

c)

polygenetics

d)

multiple alleles

e)

sex linked

73.

This picture is example of what type of trait? (no this is not how pandas are made)

a)

codominance

b)

incomplete dominance

c)

polygenetics

d)

multiple alleles

e)

sex linked

74.

This picture is example of what type of trait?

a)

codominance

b)

incomplete dominance

c)

polygenetics

d)

multiple alleles

e)

sex linked

75.

A man with type AB blood is accused of being the father of a type O baby. The mother is type A. Could this man be the father?

a)

Yes

b)

No

76.

Flowers can be red or green. What heredity is displayed?

a)

Complete dominance

b)

Incomplete dominance

c)

Codominance

d)

Polygenic trait

77.

Flowers can be purple, yellow or purple & yellow. What heredity is displayed?

a)

Codominance

b)

Complete dominance

c)

Incomplete dominance

d)

Epistatic gene is involved

78.
In a certain species of animal, black fur (B) is dominant over tan fur (b).  
Which type of dominance does this cross show?
a)
Complete Dominance
b)
Incomplete Dominance
c)
Codominance
d)
Polygenic Inheritance
79.
A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance.  What percentage of the offspring will have pink (RW) flowers?
a)
0%
b)
25%
c)
50%
d)
100%
80.
This type of inheritance pattern shows BOTH traits in possible offspring.
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
81.
How many PAIRS of sex chromosomes do humans have?
a)
23
b)
46
c)
1
d)
2
82.
AB blood type is an example of what type of inheritance?
a)
complete dominance
b)
incomplete dominance
c)
codominance
d)
polygenic inheritance
83.
What percentage of the offspring will have this recessive disease?
a)
0%
b)
25%
c)
50%
d)
75%
84.
What percentage of the female offspring will be a carrier for this recessive disease?
a)
0%
b)
50%
c)
100%
d)
25%
85.
How many PAIRS of chromosomes do humans have?
a)
23
b)
46
c)
1
d)
2
86.
How many PAIRS of sex chromosomes do humans have?
a)
23
b)
46
c)
1
d)
2
87.
I have 2 X chromosomes. What am I?
a)
Male
b)
Female
88.
I have 1 X chromosome and 1 Y chromosome. What am I?
a)
Male
b)
Female
89.
If a gene is found only on the X chromosome and not the Y chromosome, it is said to be what?
a)
sex-linked trait
b)
polygenic trait
c)
codominant trait
d)
incomplete dominance trait
90.
Hemophilia is a recessive x-linked disorder.
Which genotype represents a female who is a carrier for hemophilia?
a)
XHXh
b)
XhXh
c)
XHXH
d)
XhY
91.
Hemophilia is a recessive x-linked disorder.
Which genotype represents a male with hemophilia?
a)
XHXh
b)
XhXh
c)
XHY
d)
XhY
92.

What are the genotypes of these flies:


white eyed, male ?

a)

X R X r

b)

X R X R

c)

Xr X r

d)

X r Y

e)

XR Y

93.

H= normal blood clotting

h=hemophilia


XHXh x XHY


What is the probability that any of their offspring will have hemophilia?

a)

4/4

b)

3/4

c)

2/4

d)

1/4

94.

Look at this cross: XB XB x Xb Y

What proportion/percent of the male children are colorblind?

a)

100%

b)

75%

c)

25%

d)

0%

95.

Look at this cross: XBXb x XBY


What proportion of the male children are colorblind?

a)

100%

b)

75%

c)

50%

d)

25%

96.
What is NOT a possible genotype for someone with type B blood?
a)
BB
b)
AB
c)
BO
97.
What is the genotype of a person with type A blood, who had a father with type O blood?
a)
AB
b)
AO
c)
AA
d)
OO
98.
What are the blood types of the possible children that a woman (type O) and man (type AB) can have?
a)
O and AB
b)
O and A
c)
O and B
d)
A and B
99.
A woman has type B blood and her husband has type O blood.  What must be the woman's genotype, if they have a child with type O blood?
a)
BO
b)
BB
c)
OO
d)
type B
100.
What determines gender in humans? 
a)
the X and Y chromosome
b)
chromosome 21
c)
codominance
d)
epistasis
101.
What percentage of the female offspring will be a carrier for this recessive disease?
a)
0%
b)
50%
c)
100%
d)
25%
102.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
103.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
DNA
104.

The different forms of a gene are called

a)

traits

b)

pollinators

c)

alleles

d)

hybrids

105.
What type of inheritance is determined by multiple genes located at different loci on different chromosomes and there can be a range of traits?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
106.
How many alleles does someone have for a genotype?
a)
1
b)
2
c)
3
d)
4
107.
What pattern of inheritance is shown in this image?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
108.
Hemophilia is a recessive x-linked disorder.
Which genotype represents a female who is a carrier for hemophilia?
a)
XHXh
b)
XhXh
c)
XHXH
d)
XhY
109.
Hemophilia is a recessive x-linked disorder.
Which genotype represents a male with hemophilia?
a)
XHXh
b)
XhXh
c)
XHY
d)
XhY
110.
Which of the following genotypes belongs in the red box in the Punnett square?
a)
XBXb
b)
XbXb
c)
XbY
d)
XBY
111.
Duchenne muscular dystrophy is a recessive x-linked disorder.
According to the Punnett square, what percentage of male offspring will have the disorder?
a)
0%
b)
25%
c)
50%
d)
100%
112.

How many alleles does a child get from each parent for a trait?

a)

1

b)

2

c)

3

d)

4

113.

Aa, DD, Bb, yy are all examples of ---

a)

genotypes.

b)

phenotypes.

114.

What you see, or the physical appearance of an organism, is called the ---

a)

genotype.

b)

phenotype.

115.
What do we use pedigrees for?
a)
To look at families
b)
To make determinations about the offspring
c)
To track traits in families
d)
Nothing
116.

In a pedigree, which shape represents a male?

a)

circle

b)

square

117.

Which gender has an X and a Y chromosome?

a)

male

b)

female

118.

On a pedigree, this symbol represents a ----

a)

not affected male.

b)

not affected female.

c)

affected male.

d)

affected female.

119.

How many individuals are there in the 3rd generation?

a)

1

b)

2

c)

4

d)

6

120.

How are individuals III-2 and II-4 related?

a)

Brother and sister

b)

Dad and daughter

c)

Uncle and niece

d)

Grandfather and granddaughter

121.

What is the mode of inheritance shown here?

a)

Recessive because it "skips" a generation

b)

Dominant because it shows up in every generation

122.

On this pedigree, the allele for curly hair is dominant. The couple labeled 2 both have curly hair, but have a daughter who does not have curly hair. Therefore, we can tell from the chart that for the couple labeled 2 -

a)

the male is heterozygous and the female is heterozygous.

b)

the male is homozygous recessive and the female is homozygous dominant.

123.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
124.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
125.
Is this trait (the shaded individuals) dominant or recessive?
a)
dominant
b)
recessive
126.

If this pedigree shows a recessive disorder, what MUST the genotype of individual 4 be?

a)

HH

b)

Hh

c)

hh

127.
Determine the sex of the individual whose karyotype is displayed in the image.
a)
female
b)
male
128.
Determine the sex of the individual whose karyotype is displayed in the image.
a)
female
b)
male
129.
What is the sex of this individual?
a)
female
b)
male
130.
What makes this individual's karyotype not normal?
a)
An extra sex chromosome
b)
An extra autosome
c)
A missing sex chromosome
d)
A missing autosome
131.
Down's syndrome occurs because of a(n)
a)
missing sex chromosome
b)
extra sex chromosome
c)
additional 21st chromosome
d)
additional 18th chromosome
132.
Klinefelter's Syndrome has the karyotype notation of 
a)
47XX+21
b)
47XXY
c)
45XO
d)
44XX
133.
A person with Turner syndrome has only one X chromosome. This means one of their gametes was missing a chromosome.
Which of the following is why gametes sometimes lack a complete chromosome?
a)
Incomplete dominance
b)
Nondisjunction
c)
Inversion mutation
d)
Substitution mutation

Similar Resources on Wayground

Quizz culture générale

138 questions

Quizz culture générale

quiz

Worksheet

•

1st Grade - University

ALC Final Exam Review BORO

132 questions

ALC Final Exam Review BORO

quiz

Worksheet

•

9th - 12th Grade

Biology Fall Semester Exam Practice

130 questions

Biology Fall Semester Exam Practice

quiz

Worksheet

•

9th - 12th Grade

5.4 Cell Cycle Review

138 questions

5.4 Cell Cycle Review

quiz

Worksheet

•

9th Grade

CSE Final Exam Review CodeHS

130 questions

CSE Final Exam Review CodeHS

quiz

Worksheet

•

9th - 12th Grade

Unit 7 Quiz

132 questions

Unit 7 Quiz

quiz

Worksheet

•

9th - 12th Grade

Zoology Final Review

135 questions

Zoology Final Review

quiz

Worksheet

•

9th - 12th Grade

Biochemistry: The Chemistry Of Life

138 questions

Biochemistry: The Chemistry Of Life

quiz

Worksheet

•

9th Grade