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Genetics - Unit 3 Beyond Mendel's Genetics

Total questions: 50

Worksheet time: 58mins

Name
Class
Date
1.

When the trait has no recessive but 2 distinct versions that when combined create a blend of the 2 versions this is called___.

a)

Mendelian Inheritance

b)

Incomplete Dominance

c)

Codominance

d)

Multiple Alleles

2.

In wolves, coat color is Black, White, or Gray. This shows incomplete dominance. How would you write a genotype for a Gray wolf?

a)

BB

b)

WW

c)

BW

d)

Bb

e)

BW and Bb are both correct

3.

When both versions of the trait show up in the heterozygous individual, this type of inheritance is called ___.

a)

Incomplete dominance

b)

Codominance

c)

Multiple alleles

d)

Polygenic Inheritance

4.

In one type of flower, The flowers can be Pink, White or a Pink and white striped. This is codominance. How would a genotype for a white flower be written?

a)

IPIP

b)

IPIW

c)

IWIW

d)

WW

e)

IWIW and WW would both be correct

5.

In humans blood type is a trait that shows codominance and multiple alleles. How would the genotype for a heterozygous A blood type be written?

a)

AO

b)

IAIA

c)

IAi

d)

All of these show heterozygous A blood correctly

6.

Any trait who's gene is found on the X chromosome shows what type of inheritance?

a)

Polygenic

b)

Multiple Allele

c)

Sex-linked

d)

Codominance

7.

Hemophilia is a sex-linked trait. Which of the following would show a cross between a carrier female and a man with hemophilia?

a)

XHXh x XhXh

b)

XHXH x XhY

c)

XHXh x XHY

d)

XHXh x XhY

8.

The trait for skin color is controlled by 3 genes each with 3 alleles. Skin color is an example of ____ inheritance.

a)

Sex-linked

b)

Multiple Alleles

c)

Incomplete dominance

d)

Polygenic

9.

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

10.

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


Cross two speckled flowers.

a)

1 red, 2 speckled, 1 blue

b)

2 red, 2 blue

c)

2 blue, 2 speckled

d)

1 red, 1 speckled, 2 blue

11.

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

12.

This is an example of ---

a)

Incomplete dominance

b)

Codominance

13.

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

14.
this image is an example of
a)
codominance
b)
dominance
c)
incomplete dominance
15.

If the offsprings have the blood groups O and A the genotype of parents would be

a)

IAIA and IAi

b)

IA i and ii

c)

IAIA and IAIA

d)

IA i and IBi

16.

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

17.

There are multiple alleles for the ABO blood group. Why are only two of these alleles present in any one individual?

a)

Each parent contributes only one allele for the ABO blood group to the offspring.

b)

There are not enough nucleotides in a red blood cell to produce a third allele.

c)

Each allele in the ABO group must be dominant or recessive

d)

Blood group alleles are not segregated during meiosis.

18.

A personal with type AB blood has which genotype?

a)

type A

b)

AA

c)

IAIA

d)

IAIB

19.

Which term(s) best describes the inheritance of human blood types?

a)

incomplete dominance and multiple alleles

b)

codominance and epistasis

c)

codominance and multiple alleles

d)

incomplete dominance and codominance

20.

What is NOT a possible genotype for someone with type B blood?

a)

BB

b)

AB

c)

BO

21.
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
22.

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)

B

23.

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

24.

A single gene has 3 or more alleles. These are called

a)

multiple genes

b)

multiple alleles

c)

codominance

d)

polygenic traits

25.
This is when a trait is controlled by more than one gene.
a)
Multiple alleles
b)
Polygenetic inheritance
c)
Codominance
d)
Incomplete Dominance 
26.

Examples include skin color and height (the individual's phenotype exists somewhere along a spectrum)

a)

polygenic inheritance

b)

multiple alleles

c)

linked genes

d)

incomplete dominance

27.

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

28.

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 Y ?

a)

male with white eyes

b)

female with white eyes

c)

male with red eyes

d)

female with red eyes

29.

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

a)

male with red eyes

b)

female with red eyes

c)

male with white eyes

d)

female with white eyes

30.

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 Y ?

a)

male with red eyes

b)

female with red eyes

c)

male with white eyes

d)

female with white eyes

31.

In a cross between a pure red eyed female and a white eyed male, what would the genotypes of the parents be?

a)

XRXr with XR Y

b)

XRXr with Xr Y

c)

XRXR with XR Y

d)

XRXR with Xr Y

e)

XrXr with Xr Y

32.

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%

33.

Look at this cross: XBXb x XBY


What proportion of the male children are colorblind?

a)

100%

b)

75%

c)

50%

d)

25%

34.

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

35.

Which chromosome contains more genes?

a)

The X chromosome

b)

The Y chromosome

c)

They are homologous, so they contain the same amount of genes.

36.

Males can be heterozygous for sex-linked traits.

a)

True

b)

False

37.

How many recessive genes does a carrier female have for colorblindness?

a)

1

b)

2

c)

0

38.

The bison herd on Konza Prairie has a sex-linked trait known as “rabbit hock” in which the knee of the back leg is slightly malformed. A male bull that is normal mates with a cow that is a carrier for rabbit hock. What are his chances of producing a normal male?

a)

0%

b)

25%

c)

50%

d)

100%

39.

In a pedigree, what is the symbol for an Affected Male (a male with the condition)?

a)

Half Circle

b)

Half Square

c)

Full Shaded Circle

d)

Full Shaded Square

40.
How many affected females are present? 
a)
1
b)
2
c)
3
d)
4
41.
What kind of trait is colorblindness if females can be carriers without having the disease?
a)
Regular trait
b)
Sex-linked trait
c)
Co-dominant
d)
Incomplete dominant
42.

Which best explains why individual IV-7 has colorblindness?

a)

Because her mom is a carrier and her dad has the gene

b)

Because her dad has it.

c)

Because her siblings have it.

d)

Because her uncle has it.

43.
If the affected female in Generation 3 mates with an affected male. What will be their offspring's genotype? 
a)
50% Hybrid/50% Purebred
b)
100% Homozygous Dominant 
c)
100% Homozygous Recessive 
d)
100% Heterozygous 
44.

If hemophilia is a sex-linked recessive trait, what genotype would individual III-3 have?

a)

XhX

b)

XhXh

c)

XhYh

d)

XhY

45.

Clones have the exact same:

a)

Personalities

b)

Physical appearances

c)

Intelligence levels

d)

Genetic material

46.

How many sheep were required to create Dolly?

a)

3

b)

2

c)

1

d)

0

47.
A clone can be BEST thought of as a(n)  _____ created in the lab. 
a)
identical twin
b)
GMO
c)
science fiction experiment
48.
SCNT stands for . . . 
a)
Somatic Cell Nuclear Transfer
b)
Somatic Cell Natural Transcription
c)
Somatic Cell Nerve Transfer
d)
Skin Cell Nuclear Translation
49.
In cloning, what is the purpose of the surrogate mother? 
a)
Donate her DNA
b)
Donate her egg cell
c)
Incubate and carry the baby until birth
d)
Nothing.  She's useless.
50.
Messing with DNA by doing things like putting genes from one organism into another is _____.
a)
Gene modification
b)
gene therapy
c)
Selective breeding
d)
Animal husbandry