Free Printable Unit 10 Test (Part 2): Intro to Genetics

1.

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%

2.

What type of inheritance do two alleles have if their traits blend together?

a)

Incomplete Dominance

b)

Co-Dominance

3.

This is an example of ___________?

a)

Incomplete dominance

b)

Co-Dominance

4.

This is an example of ___________.

a)

Incomplete Dominance

b)

Codominance

5.

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

6.

In chickens, feather color is codominant. If a black chicken BB is mated with one that is black and white (BW) what are the chances of having a chicken that is black and white?

a)

50%

b)

0%

c)

25%

d)

100%

7.

How many alleles does an individual have for each trait?

a)

1

b)

2

c)

3

d)

4

8.

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

9.

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

10.

What is a possible phenotype of a child that results from a woman with type AB blood and a man with type A blood?

a)

OO

b)

type O

c)

AA

d)

type A

11.

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

12.

A personal with type AB blood has which genotype?

a)

type A

b)

AA

c)

AB

d)

BB

13.

What is the phenotype of a person with the genotype AO?

a)

type A

b)

type O

c)

AA

d)

OO

14.

Jim has type AB blood. His dad could be type O.

a)

True

b)

False

15.

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%

16.

Which is homozygous ?

a)

Zz

b)

SS

17.

Which of the following is a phenotype?

a)

BB

b)

Bb

c)

bb

d)

Blue eyes

18.

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

19.

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

20.

Two heterozygous (Tt) tall pea plants are crossed. Which describes their offspring?

a)

50% tall and 50% short

b)

75%tall and 25% short

c)

100%short

21.

Which of the following is an example of a homozygous dominant genotype?

a)

RR

b)

Rr

c)

rr

22.

Which of the following is an example of a heterozygous genotype?

a)

RR

b)

Rr

c)

rr

23.

D = dimples d = no dimples
What is the genotype for a homozygous recessive offspring?

a)

DD

b)

Dd

c)

dd

24.

T = tall an t = short
TT and Tt would result in the following phenotype

a)

short

b)

tall

c)

medium sized

d)

neither tall or short

25.

Aa, DD, bB, yy are all examples of

a)

genotypes

b)

phenotypes

26.

A homozygous black fur cat mates with a white fur cat. Which is a possible GENOTYPE of their offspring? B=black fur b=white fur

a)

Black fur

b)

White fur

c)

Bb

d)

bb

27.

What does the genotype rr mean?

a)

2 recessive alleles

b)

1 recessive allele, 1 dominant allele

c)

2 dominant alleles

d)

1 recessive allele

28.

What is the most common GENOTYPE? B=brown eyes b=blue eyes

a)

BB

b)

Bb

c)

Brown eyes

d)

Blue eyes

29.

Who is knowns as the "Father of Genetics"?

a)

Gregor Mendel

b)

James Watson

c)

Dr. Robbins

d)

Francis Crick

30.

What is the probability of heterozygous offspring?

a)

25%

b)

50%

c)

0%

d)

100%

31.

What allele combination should go in the missing box?

a)

AA

b)

Aa

c)

aa

d)

none of these

32.

Dominant alleles are represented by a:

a)

Male gene

b)

lowercase letter

c)

recessive trait

d)

capital letter

33.

What you see, or the physical appearance.

a)

Genotype

b)

Phenotype

c)

Homozygous

d)

Heterozygous

34.

Which of the following genotypes is heterozygous?

a)

Bb

b)

BB

c)

bb

d)

B

35.

Which of the following genotypes is homozygous dominant?

a)

A

b)

Aa

c)

AA

d)

aa

36.

RR- round
rr-wrinkled
What is the genotype for wrinkled?

a)

RR

b)

rr

c)

Rr

37.

RR- round
rr-wrinkled
What is the phenotype for RR?

a)

wrinkled

b)

round

38.

Is zz dominant or recessive?

a)

dominant

b)

recessive

39.

Is AA a genotype or phenotype?

a)

genotype

b)

phenotype

40.

Is "short" a genotype or phenotype?

a)

genotype

b)

phenotype

41.

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%

42.

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%

43.

In cattle red coats are represented as RR, and white coats are represented as WW. What is the genotype for Roan color? Hint: Roan means the cattle have BOTH red and white coats.

a)

RR

b)

RW

c)

WW

44.

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%

45.

The hair form gene shows incomplete dominance. Straight hair (SS) is dominant, curly hair (CC) is recessive, and wavy hair (SC) is heterozygous. Mr. and Mrs. Anderson both have wavy hair (SC). What percentage of their children will also have wavy hair (SC)?

a)

25%

b)

50%

c)

75%

d)

100%

46.

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

47.

What goes in box 3

a)

Aabb

b)

AABB

c)

AAbb

d)

aaBb

48.

What genotype is missing from this Punnett Square?

a)

RrYy

b)

RRYY

c)

rryy

d)

RrYY

49.

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%

50.

A white mouse with red eyes is crossed with a black mouse with brown eyes. The white mouse is recessive for both of its traits. The black mouse is dominant for both of its traits.

This cross would be

a)

BBEE x bbee

b)

BBEe x BbEe

c)

BbEE x BbEe

d)

BBee x BBEE

Unit 10 Test (Part 2): Intro to Genetics

Total questions: 50

Worksheet time: 11hrs 36mins

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