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Unit 5 Heredity TEST Review

Total questions: 80

Worksheet time: 2hrs 42mins

Name
Class
Date
1.

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%

2.

Which of the following genotypes is homozygous dominant?

a)

aa

b)

Aa

c)

AA

3.

Aa, DD, Ba, and yy are all examples of ---

a)

genotypes

b)

phenotypes

4.

Brown eyes are dominant (B) over blue eyes (b). What is the probability that the offspring will have brown. Complete the Punnett square.

5.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
6.

In this pedigree, which gender can be carriers of colorblindness and not have it?

a)

Just males

b)

Just females

c)

Both genders

7.
If a trait SKIPS a generation, it is an indication that the trait is....
a)
dominant
b)
recessive
c)
incompletely dominant
d)
co-dominant
8.
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
9.
The genotype of the affected son and daughter at the bottom of this pedigree...
a)
could be homozygous dominant
b)
could  be homozygous recessive
c)
could be heterozygous
d)
Can't tell
10.

In the diagram, individual III-3 indicates

a)

a female with no freckles

b)

a male with no freckles

c)

a male with freckles

d)

a female with freckles

11.

In the diagram, individual II-1 indicates

a)

a female with no freckles

b)

a male with no freckles

c)

a male with freckles

d)

a female with freckles

12.

What is the Genotype of individual I-1?

a)

FF

b)

Ff

c)

ff

d)

Can't know for sure

13.

What is the Genotype of individual II-6?

a)

FF

b)

Ff

c)

ff

d)

Can't know for sure

14.

What is the Genotype of individual III-2?

a)

FF

b)

Ff

c)

ff

d)

Can't know for sure

15.

How do you show an affected person on a pedigree?

a)

blank shape

b)

half-shaded shape

c)

solid shape

d)

striped shape

16.

How do you show an unaffected person on a pedigree?

a)

blank shape

b)

half-shaded shape

c)

solid shape

d)

striped shape

17.

How many children did the couple in the first generation have?

a)

3

b)

5

c)

4

d)

7

18.

What type of mutation is shown?

a)

Duplication

b)

Deletion

c)

Inversion

d)

Translocation

19.

What type of mutation is shown?

a)

Duplication

b)

Deletion

c)

Inversion

d)

Translocation

20.

What type of mutation is shown?

a)

Duplication

b)

Deletion

c)

Inversion

d)

Translocation

21.

What type of mutation is shown?

a)

Duplication

b)

Deletion

c)

Inversion

d)

Translocation

22.

What is the gender of this person?

a)

Male

b)

Female

23.

On what chromosome number is the mutation?

a)

21

b)

18

c)

7

d)

All

24.

What mutation has occurred here?

T-G-A-C-C-A

T-G-A-G-C-A

a)

Substitution

b)

Deletion

c)

Insertion

d)

Frameshift

25.

Which of the following would result in a frameshift mutation?

a)

Insertions only

b)

Substitution only

c)

Deletion only

d)

Insertions and Deletions

26.

Why are insertion and deletion (frameshift) mutations so harmful?

a)

They change all of the codons from the mutation on down the line, which changes the amino acid sequence

b)

They insert things that an organism doesn't need.

c)

They often delete things that organisms need.

d)

Insertion and deletions are not any more harmful than substitution mutations.

27.
If you are a boy, what percent of your genes did you get from your dad?
a)
25%
b)
50%
c)
75%
d)
100%
28.

Failure of homologous chromosomes

to separate during meiosis.

Results in gametes with either one extra or one missing chromosome.

a)

Translocation

b)

Nondisjunction

c)

Replication

d)

Transcription

29.
Which term correctly describes an individual with a pair of the same alleles for a trait? 
a)
homologous
b)
heterozygous
c)
homozygous
d)
heterologus
30.
 An individual with two different alleles for a specific trait is said to be _____________.
a)
homozygous
b)
heterogenous
c)
homogenous
d)
heterozygous
31.
 When the genotype consists of a dominant and a recessive allele, the phenotype will be like the ______________ allele.
a)
dominant
b)
recessive
c)
both
d)
neither
32.

What type of heredity does the pedigree to the right illustrate?

​ (a)   ​

Choose from the below words
autosomal dominant
autosomal recessive
X-linked dominant
X-linked recessive
Y-linked
33.

Individual II-2 has a genotype of

(use the letter a for the genotypes)

(a)  

34.
Question Image

Match the following

a)

Genotype of aa

1.

individual 1

b)

Has a genotype of Aa

2.

individual 9

c)

Has a genotype of XX and aa

3.

individual 17

d)

Genotype is not be determined

4.

individual 16

e)

is the mother of individual 12

5.

individual 4

35.
When Gregor Mendel bred the pea plants,he found that the yellow pea phenotype hid the green colored phenotype. Why?
a)
Yellow was the dominant phenotype
b)
Green was the weaker phenotype
c)
Yellow was the recessive phenotype
d)
Green was controlled by a dominant trait so the phenotype was green
36.
The passing of traits from parents to offspring
a)
Genetics
b)
Geneology
c)
Heredity
d)
Allele
37.
What is an organism's genetic makeup known as?
a)
Phenotype
b)
Chromosome
c)
DNA
d)
Genotype
38.
The physical appearance of the organism is known as the
a)
Phenotype
b)
Chromosome
c)
DNA
d)
Genotype
39.
A female guinea pig homozygous dominant for black fur color is mated with a male homozygous for white fur color. In a litter of eight offspring, probability would predict there would be _____.
a)
8 black guinea pigs  
b)
4 black and 4 white guinea pigs  
c)
2 black, 4 gray, and 2 white guinea pigs  
d)
8 white guinea pigs
40.

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

a)

Ry

b)

rrYy

c)

RrYy

d)

Rryy

41.

Which Mendelian law is represented by the ratios seen in a monohybrid cross?

a)

Law of Segregation

b)

Law of Independent Assortment

c)

Incomplete dominance

d)

Heterozygous alleles

42.
If two purebred species (BB) are crossed, what percentage of their offspring would be BB?
a)
25%
b)
50%
c)
75%
d)
100%
43.

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

a)

Phenotype

b)

Law of Segregation

c)

Genotype

d)

Dihybrid Cross

44.

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

45.

The Italian monk/scientist who first showed

the principles of genetics

a)

Watson and Crick

b)

Linnaeus

c)

Darwin

d)

Mendel

46.
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
47.

What phenotypic ratio would you expect from a cross of 2 heterozygous offspring for a single trait?

a)

1:0

b)

3:1

c)

1:2:1

d)

4:0

48.

In pea plants, flowers can either be pink (P, dominant) or white (p, recessive). If a pink flowered (Pp) and a white flowered pea plant (pp) are crossed, what is the predicted phenotype of the offspring?

a)

1 : 1 ratio of pink to white flowers

b)

3 : 1 ratio of pink to white flowers

c)

1 : 3 ratio of pink to white flowers

d)

All pink flowers

49.

The allele for purple flowers is dominant to the allele for white flowers. Which would be correct?

a)

A cross between two white flowers could never produce offspring with purple flowers.

b)

A cross between two purple flowers could never produce offspring with white flowers.

c)

A cross between a purple and a white flower could never produce offspring with white flowers.

d)

A cross between a purple and a white flower could never produce offspring with purple flowers.

50.

In Holstein cattle the allele for black hair color (B) is dominant over the allele for red hair

color (b), and the allele for polled (P), or lacking horns, is dominant over the allele for having

horns (p).


What is the expected phenotypic ratio of the offspring of a BbPp × BbPp cross if these alleles

sort independently?

a)

16 black/polled : 0 black/horned : 0 red/polled : 0 red/horned

b)

12 black/polled : 0 black/horned : 0 red/polled : 4 red/horned

c)

4 black/polled : 4 black/horned : 4 red/polled : 4 red/horned

d)

9 black/polled : 3 black/horned : 3 red/polled : 1 red/horned

51.

A cat with curled ears was crossed with a cat with non curled ears. All of the kittens born had non curled ears. Later when the offspring were crossed with each other, the phenotypic ration was 3 to 1 non-curled to curled ears. What conclusions can be made about curled ears?

a)

curled ears are a result of crossing over

b)

it is a dominant trait

c)

It is a recessive trait

d)

more crosses need to be done to determine how the trait is inherited.

52.

Round peas (R) are dominant to wrinkled peas (r). In the P generation, a homozygous round parent was crossed with a homozygous wrinkled parent. (Hint: it may be helpful to sketch out a Punnett square with these as the parents).


What is true of the F1 generation (the offspring of the P generation)?

a)

all heterozygous plants

b)

all true breeding plants (homozygous round and homozygous wrinkled)

c)

all wrinkled plants

d)

round and wrinkled plants

53.
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
54.

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? [Type the answer in fraction]

(a)  

55.

A male alligator has the genotype RrAa. If this alligator mates with a female with genotype RrAa, what is the chance their offspring will have the genotype rrAa? [Type the answer in fraction]

(a)  

56.
______________________ are non-sex chromosomes. 
a)
Autosome
b)
Heterosome
c)
Homologous
57.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
58.
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
59.
an example of polygenic inheritance is...
a)
height
b)
hitch hikers thumb
c)
blood types
60.
polygenic means that _________ control a characteristic
a)
many genes
b)
single genes
c)
3 genes
d)
no genes
61.
If a normal woman carrying the recessive sex linked gene for color blindness marries a normal male, what percentage of their sons will be color blind?
a)
0%
b)
25%
c)
50%
d)
100%
62.
In humans, hemophilia is a sex linked recessive trait. Females can be normal, carriers, or have the disease. Males will either have the disease or not (but they won’t ever be carriers). A woman who is a carrier marries a normal man. What is the probability that their children will have hemophilia?
a)
0%
b)
25%
c)
50%
d)
100%
63.

When a heterozygote has the phenotypes of both homozygotes simultaneously

a)

Codominance

b)

Complete Dominance

c)

Incomplete Dominance

64.

When more than 2 alleles are present on a given locus

a)

Codominance

b)

Multiple Alleles

c)

Nondisjunction

65.

When alleles at one locus mask the effects of alleles at a different locus

a)

Epistasis

b)

Multiple Alleles

c)

Codominance

d)

Gene Interaction

66.

A man with type AB blood marries a woman with type A blood. Which of the following blood types might their sons inherit?

a)

Type AB only

b)

Type A or type O

c)

Type A, type B, or type AB

d)

type A or type AB

e)

Type B or type O

67.
In codominance...
a)
neither trait expressed
b)
both traits expressed
c)
one gene pair can influence others
68.
blood type uses what type(s) of inheritance?
a)
incomplete dominance
b)
codominance
c)
multiple alleles
d)
codominance and multiple alleles
69.
In cows coat color exhibits incomplete dominance. RR gives a red coat. WW gives a white coat, RW give a roan coat. What is the probability of getting white offspring when you cross two roan cows? 
a)
0%
b)
25%
c)
50%
d)
75%
70.
A man with type O blood is accused of being the father of a type B baby. The mother is type A. Could this man be the father? 
a)
Yes 
b)
No
71.

Predict the probability of a child have the genotype AAbbCcDd if the parents are

AaBbCcdd x AabbCCDd

(write as a fraction in the simplest form)

(a)  

72.
Males are more likely to suffer from a sex-linked disease or disorder because
a)
males are the weaker sex
b)
males have less DNA
c)
males have 1 X chromosome, so the disorder is more likely to be expressed
73.

A breed of cow has one allele (B) that codes for brown hair and another allele (W) that codes for white hair. A heterozygous (BW) cow is a spotted brown and white pattern. What type of dominance is this?

a)

Codominanace

b)

Complete Dominance

c)

Incomplete dominance

d)

Coreccessive

74.

If a species of flower demonstrated incomplete dominance for color, a cross between a homozygous red (RR) flower and a homozygous white (WW) flower would result in offspring with what phenotype?

a)

White

b)

Red

c)

Spotted

d)

Pink

75.

Sex linked traits affect which biological sex more frequently?

a)

Female

b)

Both sexes equally

c)

Male

76.
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
77.
If you have a parent who has GgBb as their genotype, what are the possible alleles they could donate to their gametes?
a)
GB, Gb, gB, gb
b)
GB, GB, gb, gb
c)
Gb, Gb, Gb, GB
d)
GG, BB, gg, bb
78.
T4 - Black fur in mice (B) is dominant to brown fur (b). Short tails (T) are dominant to long tails (t). What percentage of the offspring of the cross BbTt x BBtt will have black fur and long tails?
a)
0%
b)
25%
c)
50%
d)
100%
79.

two parents

AABBCC x aabbcc

what is the probability that their children will be homozygous dominant for anyone of the 3 traits

(write it as a percent)

(a)  

80.

two parents

AABBCC x aabbcc

what is the probability that their children will be heterozygous for all three traits?

(write it as a percent)

(a)  

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