wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Genetics Unit Quizzizz

Total questions: 80

Worksheet time: 51mins

Name
Class
Date
1.

Passing on traits from parents to offspring

a)

Chromosome

b)

Genotype

c)

Heredity

d)

Allele

2.

The study of heredity

a)

Genetics

b)

Genome

c)

Allele

d)

Punnett Square

3.

The instruction of one allele covers up the instruction

of the other allele in a homologous pair. Symbolized by a capital letter.

a)

Recessive Allele

b)

Dominant Allele

c)

Heredity

d)

Trait

4.

The instructions of this allele are covered up by the other allele in a homologous pair. Symbolized by a small letter.

a)

Homozygous

b)

Dominant

c)

Recessive

d)

Genetics

5.

A genotype where only dominant alleles were passed on

from both parents for one trait

BB AA TT LL

a)

Homozygous Recessive

b)

Homozygous Dominant

c)

Dihybrid

d)

Heredity

6.

The letter symbols for both homologous alleles.

BB Bb bb AA Aa aa

a)

Genotype

b)

Phenotype

c)

Recessive

d)

Dominant

7.

A genotype where only recessive alleles

were passed on from both parents for one trait

bb aa tt ll

a)

Heredity

b)

Homozygous Dominant

c)

Homozygous Recessive

d)

Phenotype

8.

A genotype where one dominant and one recessive allele was passed on from both parents for one trait.

Bb Aa Tt Ll

a)

Allele

b)

Homozygous Dominant

c)

Homozygous Recessive

d)

Heterozygous

9.

During meiosis and gamete formation, homologous (paired up) alleles split up

a)

Phenotype

b)

Law of Segregation

c)

Genotype

d)

Dihybrid Cross

10.

During meiosis, the homologous pairs of chromosomes and the matching alleles are lined up independently.

Offspring are a mix of maternal genes and paternal genes.

This increases genetic variation.

a)

Homozygous Dominant

b)

Law of Segregation

c)

Crossing Over

d)

Independent Assortment

11.

The genetic cross between two parents for one trait:

Example BB x bb

B = dominant for brown

b = recessive for blue

a)

Incomplete Dominance

b)

Dihybrid Cross

c)

Monohybrid Cross

d)

Iron Cross

12.

Referring to the original parents.

a)

P1

b)

F1

c)

F2

d)

Homozygous

13.

First Filial (child) Generation: the offspring of P1

a)

P1

b)

F2

c)

F1

d)

Heterozygous

14.

Second Filial Generation: the offspring of F1

a)

P1

b)

F1

c)

F2

d)

Homozygous Recessive

15.

The ratio of homozygous dominant to heterozygous

to homozygous recessive offspring

a)

Genotypic Ratio

b)

Phenotypic Ratio

c)

Monohybrid Cross

d)

Homologous Pair

16.

The ratio of phenotypes in a Punnett Square

a)

Phenotypic Ratio

b)

Genotypic Ratio

c)

Dihybrid Cross

d)

Independent Assortment

17.

The chance that a genotype or phenotype

will actually occur in offspring

a)

Probability

b)

Phenotype

c)

Genotype

d)

Homozygous Recessive

18.

The Italian monk/scientist who first showed

the principles of genetics

a)

Watson and Crick

b)

Linnaeus

c)

Darwin

d)

Mendel

19.
What is the percentage of homozygous recessive offspring?
a)
0%
b)
25%
c)
50%
d)
75%
20.
Green peas are dominant (G) to yellow peas (g). What is the genotype for a hetereozygous dominant offspring?
a)
Gg
b)
gg
c)
GG
21.
In Mendel's pea plants, the homozygous recessive phenotype was white flowers.  If Mendel crossed two homozygous recessive pea plants, what color flowers would be seen in the offspring?
a)
white and purple
b)
white 
c)
purple
d)
lavendar
22.
What percentage of the offspring will be purebred dominant?
a)
0%
b)
25%
c)
50%
d)
75%
23.
What do you call the physical expression of a gene?
a)
genotype
b)
dominant
c)
phenotype
d)
allele
24.
What percentage of the offspring will be heterozygous dominant?
a)
100%
b)
75%
c)
50%
d)
25%
25.
What did Mendel call the two kinds of traits exhibited by the pea plants (one coming from the father, one from the mother)?
a)
Genesis
b)
Elective traits
c)
Alleles
d)
Quadrants
26.
A __________ is a segment of DNA that codes for a particular protein, which leads to a particular trait.
a)
Gene
b)
Allele
c)
Codon
d)
Nucleotide
27.
Which of the following best describes a GENOTYPE?
a)
The allele/genetic makeup of an organism.
b)
The physical expression of a trait.
28.
The letters on the TOP AND SIDE of a punnett square represent ______________.
a)
The combination of alleles in offspring.
b)
The possible alleles given by the parents following meiosis.
c)
The genotype and phenotype of offspring.
d)
The results of genetic mutations in offspring.
29.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
30.
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.
31.
this image is an example of
a)
codominance
b)
dominance
c)
incomplete dominance
32.
A breed of chicken shows codominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be:
a)
all black
b)
all white
c)
all gray
d)
speckled black and white
33.
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
34.
What gamete possibilities could come from this parent's genotype?
a)
AB, AB, aB, aB
b)
Ab, AB, Ab, ab
c)
Ab, Ab, Ab, Ab
d)
AB, aB, ab, aB
35.

What goes in box 3

a)

Aabb

b)

AABB

c)

AAbb

d)

aaBb

36.
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
a)
9/16
b)
3/16
c)
1/16
d)
16/16
37.
A male beetle has the genotype Ttbb. If this beetle mates with a female with genotype TTBb, what is the chance their offspring will have the genotype TtBb?
a)
3/16
b)
4/16
c)
8/16
d)
12/16
38.
Cross Two Homozygous plants
(RRYY x rryy)
R = round seeds, r  = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds? 
a)
0%
b)
25%
c)
50%
d)
100%
39.
Cross Two Homozygous plants
(RRYY x rryy)
R = round seeds, r  = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds? 
a)
0%
b)
25%
c)
50%
d)
100%
40.

Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?

a)

9/16

b)

3/16

c)

1/16

d)

16/16

41.

What is the genotype for a pea plant homozygous for round seeds (R), and heterozygous for yellow seeds?

a)

RrYy

b)

RRyy

c)

RRYy

d)

rryy

42.

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%

43.

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 red (RR) flowers?

a)

0%

b)

25%

c)

50%

d)

100%

44.
What is NOT a possible genotype for someone with type B blood?
a)
BB
b)
AB
c)
BO
45.
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
46.
What determines gender in humans? 
a)
the X and Y chromosome
b)
chromosome 21
c)
codominance
d)
epistasis
47.
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
48.
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
49.
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%
50.

Different types of _______ inheritance patterns include incomplete dominance, co-dominance, multiple alleles, polygenic, and sex-linked.

a)

Non-Mendelian

b)

Mendelian

51.

A trait associated with a gene that is carried on the X or Y chromosome.

a)

sex linked

b)

polygenic

c)

multiple alleles

d)

codomiance

52.

Which statement is true about X-linked genes?

a)

The male needs two copies of the gene but will express the trait regardless of whether the alleles are dominant or recessive.

b)

The male needs two copies of the gene but will express the trait only if both alleles are dominant.

c)

The male needs only one copy of the gene and will express the trait regardless of whether the allele is dominant or recessive.

d)

The male needs only one copy of the gene but will express the trait only if the allele is dominant.

53.

Three or more alternative forms of a gene that can occupy the same locus.

a)

multiple alleles

b)

codominant

c)

polygenic

d)

incomplete dominance

54.

Check all that apply.

Human ABO blood type is a _________ trait.

a)

multiallelic

b)

polygenic

c)

codominant

d)

X-linked

55.

Do a Punnett Square.


A heterozygous type A parent reproduces with a heterozygous type B parent. Which correctly describes the probability of blood type in their offspring?

a)

25% Type A, 25% Type B

25% Type AB, 25% Type O

b)

50% Type A

50% Type B

c)

25% Type A, 25% Type B

50% Type AB

d)

50% Type AB

50% Type O

56.

Do a Punnett Square.


Two parents with type AB blood reproduce. What is true of this genetic cross?

a)

50% type O : 50% type AB

b)

50% type B : 50% type A : 25% type O

c)

25% type AB : 50% type B : 25% type A

d)

50% type AB : 25% type A : 25% type B

57.

Do a Punnett Square.


In a cross between a white-eyed female fruit fly and a red-eyed male, what percent of the male offspring will have white eyes? (White eyes are X-linked and are recessive.)

a)

0%

b)

50%

c)

100%

d)

Impossible to tell

58.

Do a Punnett Square.


Hemophilia is an X-linked recessive trait. If a female carrier for hemophilia marries a normal male. If they produce a son, what are the chances he will have hemophilia?

a)

100%

b)

50%

c)

0%

d)

Impossible to tell

59.
In fruit flies, eye color is a sex linked trait. Red is dominant to white. What would be the percentages of offspring of a cross of a white eyed female with a red-eyed male?
a)
1 female white eyes, 1 female red-eyes, 1 male white eyes, 1 male red-eyes
b)
2 female red eyes, 2 males white eyes
c)
2 female white eyes, 2 males red eyes
d)
2 female red eyes, 1 male red eyes, 1 male white eyes
60.
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
61.
If this pedigree shows an autosomal recessive disorder, what MUST the genotype of individual II-3 be?
a)
HH
b)
Hh
c)
hh
d)
None of the above
62.
How are individuals III-2 and II-4 related?
a)
Cousins
b)
Dad and Daughter
c)
Uncle and Niece
d)
Grandpa and Granddaughter
63.
What type of heredity is shown in the pedigree?
(hint: check your notes - "modes of inheritance")
a)
Sex-Linked Dominant
b)
Sex-Linked Recessive
c)
Autosomal Dominant
d)
Autosomal Recessive 
64.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
65.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
66.
There are no carriers for Huntington's Disease- you either have it or you don't. Is Huntington's disease caused by a dominant or recessive trait?
a)
Dominant
b)
Recessive
67.
Does this pedigree show a dominant or recessive trait?
a)
Dominant
b)
Recessive
68.
What do half colored symbols represent?
a)
The individual is a carrier (heterozygous).
b)
The individual expresses the trait.
c)
The individual has both recessive alleles.
d)
The individual has both dominant alleles.
69.

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

a)

not affected male.

b)

not affected female.

c)

affected male.

d)

affected female.

70.

What is the mode of inheritance shown here?

a)

Recessive because it "skips" a generation

b)

Dominant because it shows up in every generation

71.

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.

72.

Why do all the daughters in Generation II carry the colorblind gene?

a)

Because mom passed on the gene.

b)

Because dad passed on the X chromosome.

73.
What is this?
a)
Pedigree
b)
Karyotype
c)
Venn diagram
d)
Punnett Square
74.
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
75.
What does a horizontal line between a square and a circle mean?
a)
They are siblings
b)
They are cousins
c)
They are married ("together")
d)
They are the children
76.
What does a vertical line coming down from a square and circle that are connected by horizontal line indicate?
a)
They are cousins
b)
The children
c)
Aunts and Uncles
77.

What type of heredity is shown in the pedigree?

a)

Sex-Linked Dominant

b)

Sex-Linked Recessive

c)

Autosomal Dominant

d)

Autosomal Recessive

78.

The pedigree is showing a _____________ trait.

a)

autosomal dominant

b)

autosomal recessive

c)

sex linked recessive

79.

This is a __ trait.

a)

autosomal recessive

b)

sex-linked recessive

c)

autosomal dominant

80.

What is the genotype of both great-grandsons? (Individuals 13 and 16)

a)

AA

b)

Aa

c)

A_

d)

aa

Similar Resources on Wayground

Biology Pre-assessment

75 questions

Biology Pre-assessment

quiz

Worksheet

•

9th - 12th Grade

Anatomy and Physiology Final Exam Review

84 questions

Anatomy and Physiology Final Exam Review

quiz

Worksheet

•

10th - 12th Grade

A&P 102 Endocrine & Cardiovascular test review

83 questions

A&P 102 Endocrine & Cardiovascular test review

quiz

Worksheet

•

10th Grade - University

DNA/RNA/PROTEIN/MUTATIONS

77 questions

DNA/RNA/PROTEIN/MUTATIONS

quiz

Worksheet

•

9th - 12th Grade

AP Biology Review Vann

84 questions

AP Biology Review Vann

quiz

Worksheet

•

10th - 12th Grade

Biology EOC Review 2019 #2

79 questions

Biology EOC Review 2019 #2

quiz

Worksheet

•

9th Grade - University

EOY Biology Practice

75 questions

EOY Biology Practice

quiz

Worksheet

•

9th - 12th Grade

QUIZ 3 REPRODUCTION& GROWTH PART 2 (SUBTOPIC 15.3, 15.4& 15.5))

78 questions

QUIZ 3 REPRODUCTION& GROWTH PART 2 (SUBTOPIC 15.3, 15.4& 15.5))

quiz

Worksheet

•

11th - 12th Grade