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4th Six Weeks Test Review

Total questions: 35

Worksheet time: 34mins

Name
Class
Date
1.

___________________ is a disorder in which some cells divide uncontrollably.

a)

hemophilia

b)

colorblindness

c)

cancer

d)

sickle cell anemia

2.

How many chromosomes are shown in a diploid human karyotype?

a)

23

b)

46

c)

11

d)

92

3.

Mendel’s principles of genetics apply to

a)

just pea plants

b)

animals only

c)

plants only

d)

all organisms

4.

Organisms that have two identical alleles for a particular trait

a)

homozygous

b)

heterozygous

c)

identical

d)

heterozygous recessive

5.

Organisms that have two different alleles for a particular trait

a)

homozygous

b)

heterozygous

c)

identical

d)

heterozygous recessive

6.

How many different allele combinations would be found in the gametes produced by a pea plant whose genotype was PpYY?

a)

1

b)

2

c)

4

d)

8

7.

The factors that determine traits are called

a)

genetics

b)

alleles

c)

characteristics

d)

hybrids

8.

When does the cell grow?

a)

m phase

b)

interphase

c)

mitosis

d)

cytokineses

9.

What is the purpose of mitosis?

a)

sexual reproduction

b)

growth and repair

c)

DNA replication

d)

cell transportation

10.

What is the purpose of meiosis?

a)

sexual reproduction

b)

growth and repair

c)

DNA replication

d)

cell transportation

11.

When Gregor Mendel crossed a purebred plant with a dominant trait with a purebred plant with a recessive trait, all the F1 generation portrayed the

a)

dominant trait

b)

recessive trait

c)

both traits

d)

an "in between trait"

12.

Four genetically different cells are produced during ______________.

a)

meiosis

b)

mitosis

13.

Two genetically identical cells are produced during ______________.

a)

meiosis

b)

mitosis

14.

Gametes are produced during

a)

meiosis

b)

mitosis

15.

Somatic cells are produced during

a)

meiosis

b)

mitosis

16.

What is the approximate probability that a human offspring will be male?

a)

10%

b)

50%

c)

75%

d)

100%

17.

The result in a 3rd phenotype in offspring is an example of

a)

dominance

b)

incomplete dominance

c)

multiple alleles

d)

polygenic traits

18.

Which of the following lists the phases of mitosis in their proper sequence?

a)

interphase, prophase, metaphase, telophase

b)

interphase, prophase, metaphase, anaphase, telophase

c)

prophase, metaphase, anaphase, telophase

d)

prophase, metaphase, anaphase, telophase, cytokinesis

19.

Where could an extra chromosome be seen?

a)

pedigree chart

b)

karyotype chart

c)

punnett square

d)

beaker

20.

Which of the following genotypes result in the same phenotype?

a)

AA and AB

b)

AA and AO

c)

AB and OO

d)

AO and OO

21.

If an organism’s haploid number is 20, its diploid number is

a)

10

b)

40

c)

100

d)

20

22.

A series of events that cells go through as they grow and divide is the

a)

cell cycle

b)

cytokineses

c)

mitosis

d)

meiosis

23.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
24.
a)
Not affected Female
b)
Not affected Male
c)
Affected Male
d)
Affected Female
25.
a)
Not Affected Male
b)
Not Affected Female
c)
Affected Male
d)
Affected Female
26.
What do half colored symbols represent?
a)
The individual is a carrier (heterozygous).
b)
The individual expresses the trait.
c)
The individual has both recessive alleles.
d)
The individual has both dominant alleles.
27.

True or False: Traits are inherited through the passing of factors from parents to offspring.

a)

True

b)

False

28.

True or False: Traits are inherited through the passing of factors from parents to offspring.

a)

True

b)

False

29.

When during the cell cycle is a cell’s DNA replicated?

a)

G1 phase

b)

S phase

c)

Mitosis

d)

G2 phase

30.

If an organism’s diploid number is 30, its haploid number is

a)

60

b)

15

c)

10

d)

2

31.

Situations in which one allele for a gene is not completely dominant over another allele for that gene are called

a)

co-dominance

b)

incomplete dominance

c)

dominance

d)

polygenic traits

32.

The number of chromosomes in a gamete is represented by the symbol

a)

x

b)

n

c)

y

d)

z

33.
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
c)
Independent assortment
d)
Recessive inheritance
34.
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
35.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance