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Ch. 11 Review Genetics and Meiosis

Total questions: 75

Worksheet time: 41mins

Name
Class
Date
1.
What describes the physical appearance of a trait?
a)
allele
b)
genotype
c)
phenotype
d)
karyotype
2.
If alleles look like Aa in a genotype it is said to be
a)
homozygous
b)
heterozygous
c)
incomplete dominant
d)
codominant 
3.
If alleles look like AA in a genotype it is said to be
a)
homozygous
b)
heterozygous
c)
incomplete dominant
d)
codominant
4.
Trait will always show up in an organism if the allele is present
a)
recessive
b)
dominant
c)
incomplete dominant
d)
codominant
5.
What shows the possible combinations of alleles that can result from a genetic cross?
a)
bar graph
b)
pie chart
c)
punnett square
d)
co-dominant graph
6.
If two heterozygous tall plants are crossed, and tall is dominant. What would be your expected phenotypes?
a)
100% tall
b)
75% tall, 25%short
c)
50% tall, 50%short
d)
25% tall, 75% short
7.
Unattached earlobes (E) is dominant. Attached earlobes (e) is recessive. A woman with the genotype (Ee) and a man with the genotype (ee) have a child. What is the probability that the child is heterozygous?
a)
0%
b)
25%
c)
50%
d)
75%
8.
If a purebred, normal feathered bird (FF) is crossed with a frizzy-feathered bird (ff) how many different phenotypes would you have? 
a)
1
b)
2
c)
3
d)
4
9.
What is going to be the genotype that is missing?
a)
AABb
b)
AABB
c)
AAbb
d)
aaBB
10.
 Cell created at the end of meiosis are best known as
a)
somatic cells
b)
gamete cells
c)
skin cells
d)
diploid cells
11.
If human body cells have 46 chromosomes, how many chromosomes will be in gamete cells after meiosis?
a)
92
b)
46
c)
23
d)
12
12.
What is being depicted in this picture?
a)
sexual reproduction
b)
anaphase I of meiosis
c)
crossing-over
d)
replication
13.
What is one advantage of sexual reproduction?
a)
offspring are identical to parents
b)
offspring are resistant to viruses
c)
offspring are born live, rather than from eggs
d)
offspring inherit a wider variety of genetic information
14.
If a Homozygous red snapdragon and a Heterozygous pink snapdragon were crossed - what percentage of the offspring would be homozygous white?
a)
0%
b)
25%
c)
50%
d)
75%
15.
How many times in meiosis does the cell divided?
a)
2
b)
4
c)
3
d)
1
16.
What phase is  shown in the picture?
a)
anaphase 1
b)
anaphase 2
c)
metaphase 1
d)
telophase 1
17.
When two haploid sex fuse together during fertilization they become ______________ 
a)
haploid cells
b)
meiosis
c)
mitochondria
d)
diploid cells
18.
The inherited combination of alleles is known as the offspring's
a)
heredity
b)
phenotype
c)
genotype
d)
redigree
19.
Sex cells are produced through the process of
a)
mitosis
b)
cytokinesis
c)
binary fission
d)
meiosis
20.

The color purple (P) is dominant to the color white (p). According to the Punnett Square, what is the probability of an offspring being white?

a)

0%

b)

25%

c)

50%

d)

75%

21.

Different versions or forms of the same gene are called —

a)

Sex Cells

b)

Chromosomes

c)

Alleles

d)

Nitrogen Bases

22.

How many haploid daughter cells are produced after meiotic division of one cell?

a)

1

b)

2

c)

3

d)

4

23.

Are gametes (sex cells) haploid or diploid?

a)

Haploid

b)

Diploid

24.

Parkinson's disease is a disorder of the central nervous system that affects movement. Patients with Parkinson's disease often have tremors. Parkinson's disease is an autosomal dominant disorder.


Suppose that Teresa's genotype is (Pp) and her husband's genotype is (pp). What are the chances that their son, Richard, will also have Parkinson's?

a)

0%

b)

25%

c)

50%

d)

75%

25.

In humans, brown eyes are dominant to blue eyes. A homozygous brown-eyed human (BB) is crossed with a homozygous blue-eyed human (bb). What is the predicted phenotypes of the offspring?

a)

All offspring will have blue eyes

b)

All offspring will have brown eyes

c)

Of the offspring, 75% will have blue eyes and 25% will have brown eyes

d)

Of the offspring, 75% will have brown eyes and 25% will have blue eyes

26.

Gametes must be _________ because ___________.

a)

haploid; two gametes will unite during fertilization to create a diploid zygote

b)

diploid; two gametes will unite during fertilization to create a diploid zygote

c)

haploid; two gametes unite during fertilization to create a haploid zygote

d)

diploid; two gametes unite during fertilization to create a haploid zygote

27.

A roan cow shows both traits for a red coat and a white coat. What kind of allele expression is this?

a)

Complete dominance

b)

Incomplete dominance

c)

Independent assortment

d)

Codominance

28.

Which of Mendel's laws states that allele pairs separate during gamete formation and randomly unite at fertilization?

a)

Law of Incomplete Dominance

b)

Law of Segregation

c)

Law of Independent Assortment

d)

Law of Complete Dominance

29.

Cells undergo __________ to produce gametes which result in a ____________ cell.

a)

Mitosis; haploid

b)

Mitosis; diploid

c)

Meiosis; haploid

d)

Meiosis; diploid

30.

Which of Mendel's laws states that when two or more characteristics are inherited, individual alleles assort randomly during gamete production, giving different traits an equal opportunity of coming together?

a)

Law of Incomplete Dominance

b)

Law of Segregation

c)

Law of Independent Assortment

d)

Law of Complete Dominance

31.

When Mendel was experimenting with pea plants, he noted that the traits for seed color and plant height were inherited separately. This observation most directly contributed to an understanding of

a)

codominance

b)

independent assortment

c)

crossing-over

d)

fertilization

32.

The law of segregation explains that

a)

alleles of a gene separate from each other during meiosis.

b)

different alleles of a gene can never be found in the same organism.

c)

each gene of an organism ends up in the same gamete.

d)

all of the above

33.

When a mouse with black fur is crossed with a mouse with white fur, all first generation (F1) offspring have grey fur. What kind of inheritance is this?

a)

simple dominant

b)

codominance

c)

sex linked

d)

incomplete dominance

34.

Which statement describes how two organisms may show the same trait, yet have different genotypes for that phenotype?

a)

Both are heterozygous for the dominant trait

b)

Both are homozygous for the dominant trait

c)

One is homozygous dominant and the other heterozygous dominant

d)

One is homozygous dominant and the other homozygous recessive

35.

A Punnett square can be used to

a)

predict the traits of the offspring produced by genetic crosses.

b)

determine the actual outcomes of genetic crosses.

c)

predict the traits of the parents used in genetic crosses.

d)

decide which organisms are best to use in genetic crosses.

36.

Gametes have

a)

homologous chromosomes.

b)

twice the number of chromosomes found in body cells.

c)

two sets of chromosomes.

d)

one allele for each gene.

37.

During meiosis, Independent assortment and Crossing over increase genetic diversity and variation.

a)

True

b)

False

38.

What is formed at the end of meiosis?

a)

two genetically identical cells

b)

four genetically different cells

c)

four genetically identical cells

d)

two genetically different cells

39.

Study the Punnett Square. What is the probability of having a recessive trait?

a)

100%

b)

50%

c)

25%

d)

0%

40.

Which stage of mitosis ends in cytokinesis?

a)

prophase

b)

anaphase

c)

metaphase

d)

telophase

41.

Phase of a cell's life in which DNA is replicated

a)

interphase

b)

anaphase

c)

prophase

d)

metaphase

42.

A type of inheritance pattern when both alleles are present in the offspring. The result is a combination of the phenotype: for example red and white flowers developing a red and white striped flower.

a)

incomplete dominance

b)

dominance

c)

epistasis

d)

codominance

43.

An organism's physical appearance, or visible traits.

a)

genotype

b)

phenotype

c)

heterozygous

d)

homozygous

44.

Term used to describe the genetics of an organism which has purebred allele's for a trait

a)

homozygous

b)

heterozygous

c)

hybrid

d)

spongebob

45.

The idea that some alleles will dominate other traits and become the phenotype is which theory of Mendel?

a)

Law of dominance

b)

Law of Independent assortment

c)

Law of Segregation

46.

How many chromosome pairs are in human cells

a)

23

b)

25

c)

20

d)

10

47.

What "father of genetics" experimented with peas to identify heredity patterns?

a)

Watson

b)

Crick

c)

Franklin

d)

Mendel

48.

What is the top left arrow pointing to?

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous recessive

d)

heterozygous dominant

49.

Snapdragons, a flowering plant popular with gardeners, can have red, white, and pink colored petals. When snapdragons with red petals (RR) are crossed with snapdragons having white (WW) petals, the offspring have pink petals. The pink coloration (RW) is a phenotype in between the red and white parental phenotypes. What is this kind of inheritance pattern called?

a)

mendel dominance

b)

incomplete dominance

c)

codominance

d)

recessive inheritance

50.

Two heterozygous purple-flowering pea plants are crossed. If purple is dominant over white, what are the expected phenotypic results?

a)

100% purple.

b)

75% purple, 25% white.

c)

50% purple, 50% white.

d)

25% purple, 75% white.

51.

If a man is heterozygous (Aa) for a trait, predict his possible sperm.

50% would carry a dominant (A) and 50% would carry a recessive (a)

Which of Mendell’s law’s best describes this concept?

a)

Mendell’s law of dominance

b)

Mendell’s law of segregation

c)

Mendell’s law of incomplete dominance

d)

Mendell’s law of operation

52.

All BUT ONE statement describes an advantage of meiosis.

a)

Variation is aided by crossing - over which occurs during meiosis

b)

The mixing of genes independently provides a huge number of genetic combintations creating biodiversity.

c)

Meiosis ensures that daugther cells receive one of each type of gene and half the chromosome number

d)

Meiosis occurs often because it allows body tissues in multi cellular organisms to repair themselves.

53.

When gametes combine to form a zygote, the chromosomes number of the zygote is now referred to as

a)

diploid

b)

monoploid

c)

haploid

d)

polyploid

54.

If an organism’s diploid number is 12, its haploid number is

a)

12.

b)

24

c)

6

d)

3

55.

Variation in human skin color is an example of

a)

incomplete dominance.

b)

codominance.

c)

multiple alleles.

d)

polygenic traits.

56.

Jane’s mom and dad are both able to roll their tongues, which is a dominant trait, but Jane cannot. How is this possible?

a)

This trait is not passed from parent to offspring.

b)

Both parents are homozygous recessive for this trait.

c)

Both parents are heterozygous for this trait.

d)

Both parents are homozygous dominant. for this trait

57.

How many chromosomes are found in a typical human somatic cell?

a)

46

b)

23

c)

92

d)

32

58.

Chromosomes form tetrads during

a)

anaphase II of meiosis.

b)

metaphase I of meiosis.

c)

interphase.

d)

prophase I of meiosis.

59.

Suppose an animal is heterozygous AaBb. When meiosis occurs, what is the total number of possible combinations of gametes that can be made for these traits?

a)

2

b)

4

c)

6

d)

8

60.
The genetic makeup of an organism or what represents the letters in a Dihybrid Cross
a)
allele
b)
genotype
c)
phenotype
d)
karyotype
61.
The genetic makeup of an organism or what represents the letters in a Dihybrid Cross
a)
allele
b)
genotype
c)
phenotype
d)
karyotype
62.

To discover whether an animal showing the dominant trait is homozygous or heterozygous, it must be crossed with an animal that is:

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous

d)

choices B & C

63.

The process of "crossing over" occurs in what phase of meiosis?

a)

anaphase 1

b)

prophase 1

c)

prophase 2

d)

telophase 2

64.

The diagram shows homologous chromosomes during prophase I of meiosis. Which of the following correctly describes the process being illustrated?

a)

Segregation of sister chromatids

b)

Mutation in which the DNA content of the gene is altered

c)

Crossing over in which alleles are exchanged

d)

Condensation and segregation of alleles

65.

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

66.
What is it called when a sperm and egg meet?
a)
meiosis
b)
fertilization
c)
cell division
d)
mitosis
67.
A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body cells?
a)
20
b)
40
c)
80
d)
160
68.
A human zygote should have _____ chromosomes inside.
a)
46
b)
23
c)
92
d)
64
69.

what phase am I?

a)

Prophase 1

b)

Metaphase 1

c)

Anaphase 1

d)

Telophase 1

e)

Cytokinesis

70.

what phase am I?

a)

Prophase 1

b)

Metaphase 1

c)

Anaphase 1

d)

Telophase 1

e)

Cytokinesis

71.

what phase am I?

a)

Prophase 1

b)

Metaphase 1

c)

Anaphase 1

d)

Telophase 1

e)

Cytokinesis

72.

what phase am I?

a)

Prophase 1

b)

Metaphase 1

c)

Anaphase 1

d)

Telophase 1

e)

Cytokinesis

73.

what phase am I?

a)

Prophase II

b)

Metaphase II

c)

Anaphase II

d)

Telophase II

e)

Cytokinesis

74.

what phase am I?

a)

Prophase II

b)

Metaphase II

c)

Anaphase II

d)

Telophase II

e)

Cytokinesis

75.

what phase am I?

a)

Prophase II

b)

Metaphase II

c)

Anaphase II

d)

Telophase II

e)

Cytokinesis

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