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Unit 4: Mendelian & Non-Mendelian Genetics

Total questions: 130

Worksheet time: 3hrs 29mins

Name
Class
Date
1.

How many alleles do you inherit from EACH parent for a specific trait?

a)

1

b)

2

2.

A tool used to predict the probability of offspring inheriting certain traits is called a ...

a)

karyotype

b)

Punnett Square

3.

The study of heredity is called ....

a)

biology

b)

genetics

c)

chemistry

4.

The physical expression of a trait is called the ...

a)

genotype

b)

phenotype

5.

Segments of DNA that code for traits are called ....

a)

genes

b)

proteins

c)

alleles

6.

Genotype: TT

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous dominant

7.

Genotype: Aa

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous dominant

8.

Cross 2 heterozygous tall pea plants. Tall (T) is dominant to short (t). What fraction of the offspring do you predict will be tall?

a)

1/4

b)

2/4

c)

3/4

d)

4/4

9.

Which statement below describes DOMINANT alleles?

a)

expressed when at least one is present

b)

only expressed when 2 are present

10.

Which of the following is a PHENOTYPE for flower color in pea plants?

a)

Pp

b)

PP

c)

Purple

11.

The trait or allele that is expressed when only one is present is called the ___________ trait.

a)

dominant

b)

recessive

12.

In pea plants, tall (T) is dominant over short (t). If two heterozygous tall pea plants are mated, what is the the expected genotypic ratio of their offspring?

a)

3 tall : 1 short

b)

1 TT : 2 Tt : 1 tt

13.

In the problem shown, what must the genotype of the missing parent be?

a)

BB

b)

Bb

c)

bb

14.

The different forms or versions of a gene are called ...

a)

alleles

b)

gametes

15.

Mendel's Law of Segregation is shown on the outside of a Punnett Square. According to this law, the genes from each parent _____ when gametes are formed.

a)

combine as one

b)

separate

c)

mutliply

16.

In humans, freckles (F) on the skin are dominant to no freckles (f).  If a heterozygous parent and a recessive parent conceive, what is the chances of having a child with NO FRECKLES?

a)

0%

b)

50%

c)

100%

17.

Having freckles is a dominant trait in humans.  A girl has freckles, but her brother does not. What do we know for certain about the parents?

a)

both parents have at least one recessive allele

b)

both parents are heterozygous for freckles

c)

one of the parents does not have freckles

18.

In a population of bees, long wings (L) are dominant over short wings (l).  Bees with long wings are ...

a)

heterozygous only (Ll)

b)

homozygous 

dominant only (LL)

c)

heterozygous or 

homozygous 

dominant (LL or Ll)

19.

In guinea pigs, the allele for rough coat (R) is dominant over the allele for smooth coat (r).  A homozygous dominant guinea pig and a homozygous recessive guinea pig are mated.

What would be the phenotype of the offspring?

a)

100% rough coat

b)

100% smooth coat

20.

Genotype: rr

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous dominant

21.

Which statement below describes RECESSIVE alleles?

a)

expressed when at least one is present

b)

only expressed when 2 are present

22.
This is an example of ___________?
a)
Incomplete dominance
b)
Co-Dominance
23.
What type of inheritance do two alleles have if their traits blend together? 
a)
Incomplete Dominance
b)
Co-Dominance
24.

When one allele is not dominant over the other, resulting in both traits expressed in a heterozygous individual.....

a)

Incomplete Dominance

b)

Codominance

25.

Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB).


Cross a red flower with a speckled flower. What is the phenotypic ratio?

a)

2 red, 2 speckled

b)

2 red, 2 blue

c)

2 blue, 2 speckled

26.

In mice coat color is incompletely dominant. Black and white are homozygous. Brown mice are heterozygous.


What is the genotype for a brown mouse?

a)

BB

b)

Bb

c)

bb

27.

In cattle red coats are represented as RR, and white coats are represented as WW.


What is the genotype for Roan color?

a)

RR

b)

RW

c)

WW

28.
this image is an example of
a)
codominance
b)
dominance
c)
incomplete dominance
29.
this image is an example of
a)
codominance
b)
dominance
c)
incomplete dominance
30.
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
31.
How many alleles does an individual have for each trait?
a)
1
b)
2
c)
3
d)
4
32.
The different forms of a gene are called
a)
traits
b)
pollinators
c)
alleles
d)
hybrids
33.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
34.
This is an example of ___________.
a)
Incomplete Dominance
b)
Codominance
35.

A woman with curly hair and a man with straight hair produced a child with wavy hair:

a)

Incomplete dominance

b)

Codominance

c)

Complete dominance

36.

You have two flowers. The purple allele (P) is dominant over the white allele (p).

You breed a homozygous dominant flower (PP) with a homozygous recessive flower (pp).

What color will the offspring be?

a)

All purple

b)

All white

c)

All pink

d)

Half purple, half white.

37.

Passing on traits from parents to offspring

a)

Chromosome

b)

Genotype

c)

Heredity

d)

Allele

38.

Passing on traits from parents to offspring

a)

Chromosome

b)

Genotype

c)

Heredity

d)

Allele

39.
Dominant alleles are represented by a(n)
a)
phenotype
b)
lower case letter
c)
upper case letter
d)
punnett square 
40.

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

41.

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

42.

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

43.
Green peas are dominant (G) to yellow peas (g). What is the genotype for a hetereozygous dominant offspring?
a)
Gg
b)
gg
c)
GG
44.
What is the percentage of homozygous recessive offspring?
a)
0%
b)
25%
c)
50%
d)
75%
45.
Round (R) seeds are dominant to wrinkled (r) seeds.
What is the genotype for a homozygous dominant offspring?
a)
RR
b)
Rr
c)
rr
46.
What do you call the physical expression of a gene?
a)
genotype
b)
dominant
c)
phenotype
d)
allele
47.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
48.
this image is an example of
a)
codominance
b)
dominance
c)
incomplete dominance
49.
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
50.

In some carnations, flower color exhibits codominance. Identify the correct genotypes for red, white, and speckled carnations.

a)

Red = RR, white = rr, speckled = SS

b)

Red = RR, white = WW, speckled = SS

c)

Red = RR, white = RW, Speckled = WW

d)

Red = RR, white = WW, speckled = RW

51.
If this image were real, it would represent what type of inheritance?
a)
incomplete dominance
b)
codominance
c)
polygenic inheritance
d)
compete dominance
52.
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%
53.
The different forms of a gene are called
a)
traits
b)
pollinators
c)
alleles
d)
hybrids
54.

A roan cow shows codominance in fur color (brown and white). What is the phenotype ratio expected in offspring a female roan and a male roan mate together?

a)

All four would be brown and White

b)

Half would be orange, half would be white

c)

2 Brown: 2 Brown and White: 0 White

d)

1 Brown: 2 Brown and White: 1 White

55.

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

56.

Snap dragon color is a incomplete dominant trait. A red flower (RR) is crossed with white flower (WW)? What color are flowers that are RW?

a)

Red

b)

Red and White

c)

White

d)

Pink

57.

In Andalusian fowls, black individuals (BB) and white individuals (WW) are homozygous. Heterozygous individuals are grey (BW).

What is the genotype ratio for a cross between a grey fowl and a white fowl?

a)

2 BB: 2 BW: 0 WW

b)

0 BB: 4 BW: 0 WW

c)

0 BB: 2 BW: 2 WW

d)

1 BB: 2 BW: 1 WW

58.
This is an example of ___________.
a)
 Incomplete Dominance
b)
 Codominance
59.
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
60.
A tall plant (TT) is crossed with a short plant (SS) and a medium plant (TS) results. This is what type of inheritance pattern?
a)
Incomplete Dominance
b)
Codominance
61.
A personal with type AB blood has which genotype?
a)
type A
b)
AA
c)
AB
d)
BB
62.

Which of the following statement is correct regarding Codominance?

a)

Both alleles are expressed equally

b)

Neither allele is expressed

c)

Expression of a trait depends upon the environment

63.
Which of the following statements is true regarding blood types?
a)
A and O are codominant, B is recessive.
b)
B and O are codominant, A is recessive.
c)
A and B are codominant, O is recessive.
d)
A , B and O are all codominant with each other.
64.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
65.
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
66.
Give the genotype for person III-3
a)
GG
b)
Gg
c)
gg
67.
Give the genotype for person II-1
a)
GG
b)
Gg
c)
gg
68.
 How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
69.
What percentage of the female offspring will be a carrier for this recessive disease?
a)
0%
b)
50%
c)
100%
d)
25%
70.

What will these offspring look like?

a)

pure red

b)

pure white

c)

red and white spots

d)

pink

71.
If two parents have type AB blood, what is the probability that their child will have type O blood?
a)
0%
b)
25%
c)
50%
d)
100%
72.
The genotype is the ______________.
a)
physical appearance
b)
Genetic makeup
c)
Alleles gained from one parent
73.
The phenotype is the _______________.
a)
physical appearance of an organism
b)
Genetic makeup 
c)
Alleles acquired from a specific parent.
74.
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
c)
polygenic trait
d)
blocked trait
75.
Which type of inheritance is this?
a)
co-dominance
b)
incomplete dominance
c)
simple dominant/recessive
d)
environmental trait
76.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
d)
recessive pattern
77.
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?
Hint: Use a punnett square...
a)
0%
b)
25%
c)
50%
d)
100%
78.
B=Blonde Hair b=Brown Hair
If a person was BB they would have
a)
Blonde Hair
b)
Brown Hair
79.
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
80.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
81.

A gene contains instructions for assembling:

a)

proteins

b)

carbohydrates

c)

lipids

d)

water

82.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
83.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
84.
What is the percentage of offspring that have green pods?
a)
100%
b)
75%
c)
50%
d)
25%
85.
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
86.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
87.
B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 
a)
0%
b)
25%
c)
50%
d)
75%
88.
In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?
a)
0%
b)
25%
c)
50%
d)
75%
89.
What is the probability of heterozygous offspring?
a)
25%
b)
50%
c)
0%
d)
100%
90.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
91.
A homozygous dominant brown mouse is crossed with a heterozygous brown mouse (tan is the recessive color). 
a)
100 % tan
b)
100 % brown 
c)
50 % brown and 50% tan 
d)
75 % brown and 25 % tan 
92.

Height and skin color are examples of...

a)

incomplete dominance

b)

codominance

c)

polygenic traits

d)

epistasis

93.

In llamas, the gene for wool color is only expressed when the gene for pigment is expressed. This is an example of...

a)

incomplete dominance

b)

codominance

c)

polygenic traits

d)

epistasis

94.
In butterfly bushes, dark purple and pink parents will produce offspring with lavender flowers. This is a result of 
a)
codominance
b)
incomplete dominance
c)
complete dominance
d)
recessive dominance
95.
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%
96.
A roan cow shows co-dominance in fur color (orange & 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
97.

The following pedigree chart shows _______ females and ______ males that DO NOT have the trait.

a)

7, 3

b)

4, 4

c)

3, 2

d)

3, 3

e)

57, 93.5

98.

How many males are carriers?

a)

2

b)

3

c)

4

d)

5

99.

If a child shows a recessive disorder, and his brother does not, his normal, healthy parents' genotypes are;

a)

Hh and Hh

b)

HH and HH

c)

Hh and HH

d)

hh and hh

100.

Cystic fibrosis is an autosomal recessive disease .


Study the pedigree what are the possible genotypes of #10? (more than one answer)

a)

AA or Aa

b)

Aa or aa

c)

aa or XY

d)

XAXa

101.

This is a recessive disease pedigree. What is the genotype of the male in generation I?

a)

Rr

b)

RR

c)

R?

d)

rr

102.

This is a recessive disease pedigree. What is the genotype of the female in generation II?

a)

Rr

b)

RR

c)

rr

d)

R?

103.
What does a filled in square represent?
a)
Not affected Female
b)
Not affected Male
c)
Affected Male
d)
Affected Female
104.
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.
105.
What does an open circle represent?
a)
Not Affected Male
b)
Not Affected Female
c)
Affected Male
d)
Affected Female
106.
Is this trait (the shaded individuals) dominant or recessive?
a)
dominant
b)
recessive
107.
If a trait SKIPS a generation, it is an indication that the trait is....
a)
dominant
b)
recessive
c)
incompletely dominant
d)
co-dominant
108.
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
109.
If two parents have type AB blood, what is the probability that their child will have type O blood?
a)
0%
b)
25%
c)
50%
d)
100%
110.
If two parents are heterozygous for type A blood, what is the probability that their offspring would have type O blood?
a)
100 %
b)
75%
c)
50%
d)
25%
111.

Which of the following are genotypes for blood type B?

a)

IA IA and IA IB

b)

IB IB and ii

c)

IB IB and IB i

d)

IA IB and IA IB

112.

This type of inheritance pattern is a MIXTURE of two traits. This is known as ---

a)

incomplete dominance.

b)

codominance

113.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)

Incomplete Dominance

b)

Codominance

114.

A brown rooster and a white chicken produced this speckled offspring. This is an example of....

a)

Incomplete dominance

b)

Codominance

c)

Complete dominance

d)

sex-linked inheritance

115.

A black male and white female produced this grey offspring. This is an example of...

a)

Incomplete dominance

b)

Codominance

c)

Complete dominance

d)

epistasis

116.

In fruit flies, eye color is a sex linked trait. Red (R) is dominant to white (r). What is the sex and eye color of flies with the following genotype: X R X r ?

a)

male with white eyes

b)

female with red eyes

c)

male with red eyes

d)

female with white eyes

117.

Colorblindness is a recessive X-linked disorder.

Which genotype represents a male with normal vision?

a)

XN YN

b)

Xn Yn

c)

XN Y

d)

Xn Y

118.

The woman who is colorblind marries a man with normal vision. What is the probability that their sons will be colorblind?

a)

0%

b)

25%

c)

50%

d)

100%

119.
Which of the following genotypes belongs in the red box in the Punnett square?
a)

XBXb

b)

XbXb

c)

XbY

d)

XBY

120.
Hemophilia is a recessive x-linked disorder.
Which genotype represents a male with hemophilia?
a)
XHXh
b)
XhXh
c)
XHY
d)
XhY
121.

What type of inheritance is determined by multiple genes and there can be a range of traits?

a)

Codominance

b)

Incomplete dominance

c)

Polygenic traits

d)

Multiple Alleles

122.

The two cows on the top are the parents and the cow on the bottom is the offspring. What is the type of inheritance pattern is being exhibited?

a)

Incomplete Dominance

b)

Codominance

c)

Multiple Alleles

d)

Polygenic Inheritance

123.

What is the mode of inheritance shown here?

a)

Recessive because it "skips" a generation

b)

Dominant because it shows up in every generation

124.
What is the pattern of inheritance shown in this pedigree?
a)

autosomal dominant

b)

autosomal recessive

c)

sex-linked dominant

d)

sex-linked recessive

125.
Analyze the following pedigree. What type of inheritance pattern is shown?
a)

autosomal dominant

b)

autosomal recessive

c)

sex-linked dominant

d)

sex-linked recessive

126.
For the pedigree below, shaded symbols represent afflicted people. Males are squares; females are circles. If the trait is a sex-linked trait carried on the X chromosome, what is true about the mother represented by circle 1?
a)

She has the genotype XXY.

b)

She has two alleles for the disorder.

c)

She is a carrier for the disorder.

d)

She has no alleles for the disorder.

127.

What are the possible genotypes of an affected individual with an autosomal dominant disorder?

a)

homozygous recessive and heterozygous

b)

homozygous dominant and heterozygous

c)

homozygous dominant and homozygous recessive

d)

homozygous dominant only

128.

Which of the following is an autosomal dominant genetic disorder?

a)

sickle cell anemia

b)

cystic fibrosis

c)

Tay-Sachs disease

d)

Huntington's disease

129.
Incomplete dominance or co-dominance?
A calico cat shows both the traits for orange fur and black fur. 
a)
Incomplete Dominance
b)
Co-dominance
c)
Complete dominance
d)
Mendelian dominance
130.

A breed of chicken shows incomplete dominance for feather color. One dominant allele codes for black feathers, another dominant allele 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

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