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Biology 30 Unit C Review I

Total questions: 152

Worksheet time: 3hrs 7mins

Name
Class
Date
1.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
2.
What is a phenotype
a)
The genetic make up (code)
b)
The physical trait
3.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
4.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
5.
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
6.
Which of the following genotypes is a purebred?
a)
Bb
b)
Gg
c)
bb
d)
Dd
7.
Which of the following genotypes would be considered heterozygous?
a)
BB
b)
gg
c)
Ff
d)
TT
8.
Which of the following alleles is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
9.

The passing of genetic traits from parent to offspring is known as

a)

heredity

b)

trait

c)

gene

d)

allele

10.
An allele whose trait always shows up in the organism when the allele is present.
a)
recessive allele
b)
dominant allele
c)
hidden allele
d)
present allele
11.

An organism's genetic makeup

a)

phenotype

b)

genotype

c)

heterzygous

d)

allele

12.

An organism's appearance or other detectable characteristic

a)

genotype

b)

phenotype

c)

genetics

d)

heterozygous

13.

Having two of the same genes for the trait (sometimes called purebred) =

a)

homozygous

b)

hetrozygous

c)

protein

d)

chromosome

14.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
15.
father of genetics
a)
Gregor Mendel
b)
James Watson
c)
Dr. Robbins
d)
Francis Crick
16.
A characteristic that an organism can pass on to its offspring through its genes
a)
protein
b)
trait
c)
DNA
d)
gene
17.
A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?
a)
25%
b)
50%
c)
75%
d)
100%
18.
The study of heredity and the variation of inherited characteristics 
a)
gene
b)
genetics 
c)
meiosis 
d)
hybrid 
19.

Which is heterozygous ?

a)

Tt

b)

TT

20.
Which is homozygous ?
a)
Zz
b)
SS
21.

What predicts genetic outcomes?

a)

genetic engineering

b)

punnet square

c)

karyotype

22.
Brown (B) is dominant over white (b). Which genotype is a purebred for brown fur?
a)
BB
b)
Bb
c)
bb
d)
All of the above
23.
 Dominant alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
24.
 Recessive alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
25.
Which is the correct phenotype for this organism?
a)
BB
b)
blue
c)
green
d)
bb
26.
What genotype would go in box 2?
a)
BB
b)
Bb
c)
bb
27.

What is the probability of heterozygous offspring?

a)

0%

b)

100%

c)

50%

d)

25%

28.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
29.

If T=tall and t=short

What is the ratio for short phenotype in this cross?

a)

0:4

b)

1:4

c)

2:4

d)

3:4

30.
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
31.

What genotype would go in box 1?

a)

BB

b)

Bb

c)

bb

32.

What are the possible genotypes for this cross?

a)

TT = 25% Tt= 50% tt=25%

b)

all tall

c)

TT= 75% tt = 25%

d)

Tt = 100%

33.

In a certain species of plant, the color purple (P) is dominant to the color white (p).

According to the Punnett Square, what is the probability of an offspring being purple?

a)

25%

b)

0%

c)

100%

d)

50%

34.

Which of these Punnett squares represents a cross between a homozygous dominant parent and a heterozygous parent?

a)
b)
c)
d)
35.
What is the phenotype of the heterozygous parent in the punnett square?
a)
green
b)
yellow
c)
hybrid
d)
purebred
36.

Who is considered the "father of genetics"?

a)

Reginald Punnett

b)

Gregor Mendel

c)

James Watson

d)

Charles Darwin

37.

What are the alleles of highlighted box?

(a)  

38.

What are the alleles of highlighted box?

(a)  

39.

What are the alleles of highlighted box?

(a)  

40.

What are the alleles of highlighted box?

(a)  

41.

What are the alleles of highlighted box?

(a)  

42.

What are the alleles of highlighted box?

(a)  

43.

What are the alleles of highlighted box?

(a)  

44.

What is the missing allele for this parent?

(a)  

45.

What are the alleles for this parent?

(a)  

46.

AA

a)

Dominant

b)

Recessive

47.

mm

a)

Dominant

b)

Recessive

48.

ee

a)

Dominant

b)

Recessive

49.

Phenotype or Genotype? HH

a)

Phenotype

b)

Genotype

50.

Phenotype or Genotype? Blue eyes

a)

Phenotype

b)

Genotype

51.

Phenotype or Genotype? The combination of alleles/letters

a)

Phenotype

b)

Genotype

52.

Phenotype or Genotype? The physical expression/appearance of a gene

a)

Phenotype

b)

Genotype

53.

Phenotype or Genotype? bb

a)

Phenotype

b)

Genotype

54.

A Punnett square predicts the possible offspring of 2 parents.

a)

Yes.

b)

No.

c)

The Punnett square is always right.

55.

The study of how different traits are passed from parents to offspring.

a)

genetics

b)

geology

c)

nuclear physics

d)

chemistry

56.

If A = red fur and a = white fur, what is the probability of red fur?

a)

25%

b)

50%

c)

75%

d)

100%

57.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
58.

How many alleles does a person carry for a trait?

a)

1

b)

2

c)

3

d)

4

59.

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

a)

1

b)

2

c)

3

d)

4

60.

Dominant alleles are represented by a ---

a)

capital letter.

b)

lowercase letter.

61.

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

a)

genotypes.

b)

phenotypes.

62.

In a heterozygous genotype, the _____ allele takes over in the phenotype.

a)

recessive

b)

dominant

c)

both

63.

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

a)

genotype.

b)

phenotype.

64.
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
65.

In a pedigree, which shape represents a male?

a)

circle

b)

square

66.

Which gender has an X and a Y chromosome?

a)

male

b)

female

67.

On a pedigree, this symbol represents a ---

a)

not affected female.

b)

not affected male.

c)

affected male.

d)

affected female.

68.

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

a)

not affected male.

b)

not affected female.

c)

affected male.

d)

affected female.

69.

How many individuals are there in the 3rd generation?

a)

1

b)

2

c)

4

d)

6

70.

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

71.

What is the mode of inheritance shown here?

a)

Recessive because it "skips" a generation

b)

Dominant because it shows up in every generation

72.

In the second generation of this pedigree, how many people are carriers of the trait? *Remember: a carrier does not have the disorder/disease, but can pass it on to his/her children.

a)

1

b)

2

c)

3

d)

5

73.

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.

74.

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.

75.

The trait this pedigree traces is recessive because it skips a generation and individuals can be carriers. What is the most likely genotype for person III-3?

a)

GG

b)

Gg

c)

gg

76.

Which individual in the first generation is a carrier?

a)

I-1

b)

I-2

77.

If this pedigree shows a recessive disorder, what MUST the genotype of individual II-3 be?

a)

HH

b)

Hh

c)

hh

78.

Identify the male in generation I.

A
B
C
D
E
F
79.

How many alleles does a person carry for each trait?

(a)  

80.

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

(a)  

81.

In a pedigree, which shape represents a female?

a)

circle

b)

square

82.

On this pedigree, the allele for curly hair is dominant. How many male and female offspring did the couple labeled 2 produce?

a)

2 females

b)

1 female and 1 male

c)

2 males and one female

d)

no offspring

83.

Identify the individual II-4

A
B
C
D
E
F
G
H
I
J
84.

Identify the individual III-4

A
B
C
D
E
F
G
H
I
J
85.

How many offspring did Walter and Suzanne have?

a)

4

b)

3

c)

7

d)

5

86.

Sam and Madeline are having another baby. Which statement is true?

a)

The baby will inherit the trait.

b)

The baby will be a carrier for the trait.

c)

The baby will not inherit or carry the trait.

d)

None of these are correct.

87.

Which of the following shows how a trait is passed through multiple generations of a family?

a)

Family Square

b)

Genetic Chart

c)

Punnett Square

d)

Pedigree Chart

88.

What is a tool used to predict which genes an offspring can inherit?

a)

Punnett Square

b)

Pedigree Chart

c)

Genetic Chart

d)

Family Square

89.
Question Image

Having a Widow's Peak is dominant (W) over not (w). If parent A (WW) and parent B (ww) have a child, what is the likelihood that--

a)

The child will have a widow's peak

1.

100%

b)

The child will not have a widow's peak

2.

0%

c)

The genotype of these children

3.

Ww

90.
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
91.
 Phenotype refers to the _________ of an individual
a)
genetic makeup
b)
physical appearance
c)
recessive alleles
d)
dominant alleles
92.
 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
93.
 Heredity information for traits is located in _____________.
a)
chromosomes on genes
b)
genes of chromosomes
c)
lysosomes in cytoplasm
d)
the mitichondria
94.

The passing of physical characteristics, or traits, from parent to offspring.

a)

Genetics

b)

Dominant allele

c)

Heredity

d)

Recessive allele

95.

The scientific study of heredity.

a)

Genetics

b)

Heredity

c)

Probability

d)

Pedigree

96.

The different forms of a gene.

a)

Genes

b)

Allele

c)

Phenotype

d)

Pedigree

97.

Who's discoveries set the foundation for the study of genetics?

a)

Oliver

b)

Taylor

c)

Mendel

d)

Newton

98.

An organism that has two identical (THE SAME) alleles for a trait (purebred)

a)

homozygous

b)

heterozygous

99.

An organism that has two different alleles for a trait (hybrid)

a)

homozygous

b)

heterozygous

100.
 One dog carries homozygous, 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%
101.
When 2 pea plants heterozygous for height (Tt) are crossed, what is the ratio of the resulting genotypes (TT:Tt:tt)?
a)
1:2:1
b)
2:1:1
c)
0:3:1
d)
0:2:2
102.
Give the genotype for person III-3
a)
GG
b)
Gg
c)
gg
103.
Is this trait (the shaded individuals) dominant or recessive?
a)
dominant
b)
recessive
104.

Examine the parents in generation I. How many grandchildren do they have?

a)

2

b)

4

c)

6

d)

11

105.

Examine the parents in generation I. How many great grandchildren do they have?

a)

0

b)

2

c)

3

d)

5

106.

The shaded shapes represent individuals with attached earlobes (ee).

What is the genotype of the generation I parents?

a)

ee

b)

Ee

c)

EE

d)

It is not possible to determine

107.

The shaded shapes represent individuals with attached earlobes (ee).

Examine the parents in generation I.

What is the genotype of their boys?

a)

EE or Ee

b)

EE or ee

c)

Ee or ee

d)

ee

108.

When 2 pea plants heterozygous for height

(Tt) are crossed, what is the ratio of the resulting genotypes (TT : Tt : tt)?

HINT: Make a Punnett Square.

a)

1:2:1

b)

2:1:4

c)

0:3:1

d)

0:2:2

109.

Different versions of a trait (tall or short, white or purple) are called

a)

alleles

b)

traits

c)

versions

d)

genes

110.

Who was the Austrian monk that experimented on pea plants and is called the "father of genetics"?

a)

Gregor Mendel

b)

Charles Darwin

c)

Francis Crick

d)

James Watson

111.

Which of the following is considered to be Homozygous Dominant?

a)

AA

b)

Aa

c)

aa

112.

Which of the following is considered to be Heterozygous?

a)

AA

b)

aa

c)

Aa

113.

incomplete dominance means that there traits are...

a)
expressed equally
b)
dominant
c)
recessive
d)
blended
114.

Polygenic inheritance means that _________ control a characteristic

a)
many genes
b)
single genes
c)
3 genes
d)
no genes
115.
What do you call the non-Mendelian inheritance pattern where both traits are dominant and both appear in the organism with heterozygous genotype?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
d)

Multiple alleles

116.
What pattern of inheritance is shown in this image?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
d)

Multiple alleles

117.
What pattern of inheritance is shown in this image?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
d)

Multiple alleles

118.
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
119.
In the following Punnett Square, R represents red scales and B represents blue scales.  If scale type shows co-dominance in fish, what is the probability of each color in the offspring?
a)
50% blue, 50% red and blue, 0% red
b)
50% purple and 50% blue
c)
100% red and blue
d)
0% red, 0% blue, 100% red and blue
120.

Is it possible for a Type A dad and a Type B mom to have a child with Type O blood?

a)

Only if both parents are heterozygous

b)

No

c)

Only if the Mom is heterozygous

d)

Only if the Dad is heterozygous

121.
__________ are responsible for passing down traits from parent to offspring.
a)
Mutations
b)
Mitochondria
c)
Mitosis
d)
Genes
122.
There are multiple versions of each gene. Each version of a gene is called ___________.
a)
An allele
b)
A genoversion
c)
A genotype
d)
An alternate
123.
Which of the following is a hybrid?
a)
BB
b)
oo
c)
Bo
d)
AA
124.
If a father is AA and a mother is AB, what is the probability for a child with AB blood? 
a)
0%
b)
25%
c)
50%
d)
75%
125.
What type of blood is the universal donor?
a)
O
b)
AB
126.
An individual's blood type is determined by
a)
environment
b)
genetics
c)
both environment and genetics
d)
your children's blood type
127.
If a red blood cell has no antigens on its surface, what is its blood type?
a)
A
b)
B
c)
AB
d)
O
128.
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
129.
What is NOT a possible genotype for someone with type B blood?
a)
BB
b)
AB
c)
BO
130.

If a person has blood type A, what could be the genotype?

**Select all correct answers.

a)

AA

b)

BO

c)

AO

d)

OO

131.
This is an example of ___________?
a)
Incomplete dominance
b)
Co-Dominance
132.
This is an example of ___________.
a)
 Incomplete Dominance
b)
 Codominance
133.
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
134.
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
135.
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
136.
What goes in box 3
a)

Aabb

b)

AABB

c)

AAbb

d)

aaBb

137.

Match the following combinations of alleles:

a)

Homozygous dominant

1.

DD

b)

Homozygous recessive

2.

dd

c)

Heterozygous

3.

Dd

138.

What is the genotype that should be in the blank square?

a)

yyRr

b)

YYRR

c)

yyrr

d)

YrYr

139.
How many alleles does an individual have for each trait?
a)
1
b)
2
c)
3
d)
4
140.

Which are Mendel's laws of inheritance?

**Select TWO answers.

a)

individuals have a pair of alleles for each gene: one from dad and one from mom

b)

individuals have ten alleles for each gene

c)

one trait is dominant over the other

141.
What is the probability of homozygous dominant offspring?
a)
0%
b)
100%
c)
50%
d)
25%
142.

What are the chances that the offspring will have the homozygous recessive genotype?

a)

1 in 4

b)

4 out of 4

c)

75%

d)

50%

143.

In flowers, red (R) is dominant to white (r). Normally the heterozygous Rr offspring would still be red, but in INCOMPLETE DOMINANCE, what color would the offspring be?

(a)  

144.

The prefix "poly" in the term polygenic inheritance means...

(a)  

145.

What type of inheritance pattern is shown here?

a)

Codominance

b)

Incomplete dominance

146.
What is the genotype of the mother?
a)
BB
b)
bb
c)
Bb
d)
BB or Bb
147.
What is the genotype of the father?
a)
AA
b)
aa
c)
Aa
d)
AA or aa
148.
incomplete dominance means that there traits are,,,
a)
expressed equally
b)
dominant
c)
recessive
d)
blended
149.

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

150.

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

a)

Yes

b)

No

151.

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

a)

Yes

b)

No

152.

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

a)

Yes

b)

No

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