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8b quiz review

Total questions: 25

Worksheet time: 23mins

Name
Class
Date
1.

      If a pea plant were homozygous recessive for height, how would its alleles be represented?

a)

tt

b)

tT

c)

Tt

d)

TT

2.

When the heterozygous condition results in traits that are blended or intermediate (not dominant or recessive), it is _______.

a)

codominance

b)

dominance

c)

Mendelian

d)

incomplete dominance

3.
What goes in box 1
a)
AABb
b)
AABB
c)
aabb
d)
AaBb
4.

What goes in box 15

a)

aabb

b)

AABB

c)

aaBB

d)

AAbb

5.

The genotypes Tt, Mm, and Gg would be described as __________.

a)

heterozygous

b)

homozygous

6.

The same gene can come in different versions, the different versions of a gene are called:

a)

Alleles

b)

Chromosomes

c)

Traits

7.

Another word for heterozygous is

a)

purebred

b)

hybrid

c)

dominant

d)

recessive

8.

The ___________ states that a recessive allele is only expressed when a dominant allele is not present.

a)

Law of Dominance

b)

Law of Inheritance

9.

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%

10.

In cacti, long arms (A) are dominant to short arms (a). Suppose 2 heterozygous cacti are crossed. What percentage of their offspring are expected to have short arms?

a)

0%

b)

25%

c)

75%

d)

100%

11.

In a dihybrid cross, if one parent is heterozygous for both traits (RrYy) and the other parent is homozygous recessive for both traits (rryy), what will be the genotype of the offspring?

a)

The genotype of the offspring will be RrYy, Rryy, rrYy, or rryy.

b)

RRyy

c)

RrYY

d)

rrYY

12.

In a dihybrid cross, if one parent is homozygous dominant for both traits (BBYY) and the other parent is homozygous recessive for both traits (bbyy), what will be the genotype of the offspring?

a)

BBYY

b)

bbYY

c)

BbYy

d)

BbYY

13.

What is the phenotypic ratio of a dihybrid cross between two individuals who are heterozygous for both traits?

a)

9:3:3:1

b)

1:1:1:1

c)

4:4:2:2

d)

6:2:2:1

14.

A red flowering plant is crossed with a yellow flowering plant.  The offspring are all red with yellow edges.  The inheritance pattern is:

a)

codominance

b)

complete dominance (Mendelian)

c)

incomplete dominance

d)

multiple alleles

e)

polygenic inheritance

15.

A red flowering plant is crossed with a blue flowering plant.  The offspring are all purple.  The inheritance pattern is:

a)

codominance

b)

complete dominance (Mendelian)

c)

incomplete dominance

d)

multiple alleles

e)

polygenic inheritance

16.

Mice can have either black or red eyes, which is controlled by a single gene.

a)

codominance

b)

complete dominance (Mendelian)

c)

incomplete dominance

d)

multiple alleles

e)

polygenic inheritance

17.

Blue frogs are crossed with black frogs, resulting in frogs with blue and black spots.

a)

codominance

b)

complete dominance (Mendelian)

c)

incomplete dominance

d)

multiple alleles

e)

polygenic inheritance

18.

Two pink snapdragons are crossed.  This is an incompletely dominant trait.  What percent of the offspring would you expect to have pink flowers?

a)

25%

b)

50%

c)

75%

d)

100%

19.

Cross a man with AB blood and a woman with O blood. What are the possible phenotypes of the offspring?

a)

A or O

b)

A or B

c)

B or O

d)

A, B or O

20.

What type of inheritance pattern does this show?

a)

codominance

b)

complete dominance (Mendelian)

c)

incomplete dominance

d)

multiple alleles

e)

polygenic inheritance

21.
This is an example of ___________?
a)
Incomplete dominance
b)
Co-Dominance
22.

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

23.

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

24.
How many alleles does an individual have for each trait?
a)
1
b)
2
c)
3
d)
4
25.

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