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Inheritance, Chromosome, Meiosis 2.2.3 2.2.4 2.2.5 PBS

Total questions: 99

Worksheet time: 2hrs 45mins

Name
Class
Date
1.
Which of the following alleles is homozygous (purebred) recessive?
a)
Tt
b)
tt
c)
TT
d)
t
2.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous genes
d)
mutated DNA
3.
Aa is
a)
homozygous (purebred)
b)
heterozygous (hybrid)
4.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both 
5.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
6.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
7.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
8.
In a Punnett square each box represents a(n)....
a)
offspring
b)
parent
c)
gene
d)
trait
9.
Is this punnet square true or false?
a)
False, because there should be 3 dominate alleles.
b)
True.
c)
False, because There should be 3 recessive alleles.
d)
I don't know....
10.
How many chromosomes are in a sex cell?
a)
46
b)
23
c)
26
d)
43
11.
The passing of physical characteristics from parent to offspring is __________.
a)
genetics
b)
heredity
c)
genes
d)
traits
12.
When a capital letter is used, what kind of allele is being represented?
a)
Recessive Allele
b)
Codominance
c)
Punnett Squares
d)
Dominant Allele
13.
When two identical alleles for a trait are in an organism, the organism is said to be ____________?
a)
Heterozygous
b)
Homozygous
c)
allele
d)
resseive
14.
characteristic that is inherited; can be either dominant or recessive
a)
genes
b)
allele
c)
chromosome
d)
trait
15.
outward appearance of an organism, regardless of its genes.
a)
phenotype
b)
genotype
c)
haploid
d)
deploid
16.
The genetic characteristics of recessive genes
a)
tend to mask the characteristics of dominant genes.
b)
are always expressed in the phenotype.
c)
are usually codominant.
d)
tend to be masked by the characteristics of dominant genes.
17.
What does a filled in square represent?
a)
Not affected Female
b)
Not affected Male
c)
Affected Male
d)
Affected Female
18.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
19.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
20.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
21.
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.
22.
What does an open circle represent?
a)
Not Affected Male
b)
Not Affected Female
c)
Affected Male
d)
Affected Female
23.
In the second generation-how many people are carriers of the trait?
a)
2
b)
3
c)
5
d)
6
24.
How many people in this whole pedigree have the trait/disease?
a)
2
b)
3
c)
4
d)
6
25.
How many females are in this pedigree?
a)
3
b)
4
c)
6
d)
7
26.
How many people in the pedigree are carriers for the disorder? 
a)
6 
b)
8
c)
2
d)
9
27.
How many affected females are present? 
a)
1
b)
2
c)
3
d)
4
28.
Which generation connects these two pedigrees? 
a)
1
b)
2
c)
3
29.
A carrier is represented by what symbol? 
a)
Clear 
b)
Shaded 
c)
Half Shaded
d)
1:4 ratio 
30.
Offsprings are represented by....
a)
Horizontal Line 
b)
Vertical Line 
31.
What does a horizontal line between a square and a circle mean?
a)
They are siblings
b)
They are cousins
c)
They are married ("together")
d)
They are the children
32.
If a trait SKIPS a generation, it is an indication that the trait is....
a)
dominant
b)
recessive
c)
incompletely dominant
d)
co-dominant
33.

Objective #13

This is a pedigree that follows blue eyes which is a recessive trait. What is the phenotype of the mother (circle) in generation 1?

a)

Brown

b)

Blue

c)

1 blue, 1 brown

34.
Which individual in the first generation is a carrier?
a)
The male
b)
The female
c)
individual 1
d)
None of the above
35.
What is the mode of inheritance shown here?
a)
Autosomal Dominant
b)
Autosomal Recessive
c)
Sex Linked Recessive
36.
What is the mode of inheritance shown here?
a)
Sex Linked
b)
Autosomal Dominant
c)
Autosomal Recessive
37.
What is the mode of inheritance shown here?
a)
Autosomal Recessive
b)
Autosomal Dominant
c)
Sex Linked
38.
What is the mode of inheritance shown here?
a)
Autosomal Dominant
b)
Autosomal Recessive
c)
Sex Linked
39.
What is the mode of inheritance shown here?
a)
Autosomal Recessive
b)
Autosomal Dominant
c)
Sex Linked
40.
What is the mode of inheritance shown here?
a)
Autosomal Dominant
b)
Sex Linked
c)
Autosomal Recessive
41.
What is the relationship between person I 1 and III 2?
a)
Father and Son
b)
Father and Daughter
c)
Grandfather and Granddaughter
d)
Uncle and Niece 
42.
Which of the following combinations of sex chromosomes represent a female?
a)
XY
b)
XXY
c)
XX
43.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
44.
If B = brown hair and b = blonde hair, what is the probability of brown hair?
a)
25%
b)
50%
c)
0%
d)
75%
45.
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
46.
What is the probability of heterozygous offspring?
a)
25%
b)
50%
c)
0%
d)
100%
47.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
48.
What is the probability of homozygous dominant offspring?
a)
0%
b)
100%
c)
50%
d)
25%
49.
What is the pituitary gland?
a)
the master gland
b)
helps you go to sleep
c)
influence metabolic rate
d)
decrease blood calcium
50.
Function of pituitary gland:
a)
produces the highest number of different hormones
b)
senses the hormone levels in the blood
c)
increase bone calcium levels
d)
decrease blood calcium
51.
Which of the following anterior pituitary hormones stimulates growth of long bones?
a)
Prolactin
b)
Thyrotropin
c)
Adrenocorticotropic hormone
d)
Human growth hormone
52.

(of a tumor) cancerous; characterized by uncontrolled growth

a)

Severed

b)

Exploited

c)

Malignant

d)

Peril

53.

a substance that is usually injected into a person or animal to protect against a particular disease

a)

vaccines

b)

scientist

c)

cancer

d)

growth

54.

She was an African-American woman whose cancer cells are the source of the HeLa cell line

a)

Jennifer Love

b)

Hank Aaron

c)

Henrietta Lack

d)

Henry Rowe

55.

Henrietta Lacks died from:

a)

infection

b)

cancer

c)

gunshot

d)

heart attack

56.

What did scientists and doctors get from her?

a)

hair

b)

cells

c)

a part of her body (kidney)

57.

Henrietta Lacks' family got ____ for medicine made from her cells.

a)

no money

b)

1000 dollars

c)

10,000 dollars

d)

3,000,000 dollars

58.

"He La" is the name of:

a)

Henrietta's doctor

b)

Henrietta's child

c)

the cell line developed from her cells

d)

a song made about her story

59.
The haploid number of human chromosomes is
a)
11
b)
12
c)
23
d)
46
60.
The diploid number of human chromosomes is
a)
23
b)
46
c)
92
61.
Histones are 
a)
proteins wound up in DNA
b)
critical to maintaining the shape of chromosomes
c)
aid in the tight packing of DNA
d)
all of these 
62.
How many DNA molecules make up a chromosome?
a)
1
b)
2
c)
23
d)
46
63.
Each identical side of a chromosome is the 
a)
centromere
b)
chromatin
c)
centriole
d)
chromatid
64.
When DNA is in its less coiled, "relaxed," state, between cell divisions, it is called
a)
autosomes
b)
chromatid
c)
chromatin
d)
centromere
65.
Autosomes are
a)
chromosomes found in autotrophs, only
b)
chromosomes that automatically correct all errors in the DNA
c)
chromosomes that determine traits other than sex
d)
chromosomes that determine the sex of the individual
66.
The structure that holds two chromosomes together until they separate for cell division is the
a)
chromatid
b)
chromatin
c)
centromere
d)
cytoplasm
67.

An organism's reproductive cells, or sex cells, are called _____.

a)

bacteria

b)

prokaryotes

c)

gametes

d)

pathogens

68.

A _______ is a segment of DNA that codes for a specific protein or RNA molecule.

a)

gene

b)

gamete

c)

chromosome

d)

chromatid

69.

A _________ is DNA tightly coiled around proteins.

a)

gene

b)

chromosome

c)

trait

d)

mutation

70.

The 2 exact copies of DNA in a chromosome are called ________.

a)

chromatids

b)

genes

c)

mutations

d)

pathogens

71.

How many chromosomes does a human body cell have, total?

a)

48

b)

46

c)

23

d)

47

72.

Chromosomes that are paired by size and content are called _______ chromosomes.

a)

homeostasis

b)

homologous

c)

matching

d)

sister

73.

Body cells are also called _________ cells.

a)

normal

b)

prokaryotic

c)

pathogens

d)

somatic

74.

Cells that contain 2 sets of chromosomes are called _________ (2n).

a)

diploid

b)

haploid

c)

triploid

d)

polyploid

75.

Cells that contain only ONE set of chromosomes are called ________ (n).

a)

diploid

b)

polyploid

c)

triploid

d)

haploid

76.

A _______ is an egg that has been fertilized by a sperm cell.

a)

gene

b)

chromosome

c)

zygote

d)

embryo

77.

The chromosomes that are not involved in determining the sex of an individual are called __________.

a)

sex chromosomes

b)

mutations

c)

autosomes

d)

homologous

78.

The 23rd pair of chromosomes that do determine the sex of an individual are called ___________.

a)

sex chromosomes

b)

autosomes

c)

homologous

d)

genes

79.

The 2 female sex chromosomes are ___.

a)

XY

b)

XX

80.

The 2 male sex chromsomes are _____.

a)

XY

b)

XX

81.

A photo of the chromosomes in a dividing cell that are arranged by size is called a _________.

a)

mutation

b)

gene

c)

picture

d)

karyotype

82.

Turner Syndrome is also known as _______.

a)

Monosomy X

b)

Trisomy 13

c)

Trisomy 18

d)

Trisomy 21

83.

What type of scientist prepares chromosome spreads?

a)

Music Therapist

b)

Cytogeneticist

c)

Cytopathologist

d)

Genetic Counselor

84.

How are HeLa cells different from healthy human cells?

a)

The lack centromeres

b)

They are missing chromosomes

c)

They lack nuclei

d)

They have extra chromosomes

85.

what is this phase?

a)

metaphase1

b)

antiphase

c)

metaphase2

d)

telaphase

86.
When a cell is not actively dividing, it is in what phase?
a)
interphase
b)
anaphase
c)
prophase
d)
telophase
87.
What portion of the cell cycle involves the actual dividing?
a)
interphase
b)
mitosis
c)
Gap 1
d)
Gap 2
88.
When a cell divides, what do we call the 2 new cells?
a)
mother cells
b)
father cells
c)
daughter cells
d)
son cells
89.
Before a cell can divide, what must happen?
a)
Nothing, it is always ready to divide
b)
The number of chromosomes must be cut in half
c)
The number of chromosomes must double
d)
The number of chromosomes must triple.
90.
In which type of cells will mitosis occur?
a)
egg cells
b)
sperm cells
c)
jail cells
d)
Body cells except the sperm and egg cells
91.
What is the name of the process in which DNA (genetic information) is exchanged during meiosis?
a)
crossing under
b)
crossing over
c)
melding
d)
blending
92.
In meiosis, the haploid number of chromosomes in a human sex cell is:
a)
46
b)
92
c)
22
d)
23
93.
What is the diploid number of cells found in a human body cell?
a)
23
b)
46
c)
92
d)
47
94.
When you start with 1 cell, at the end of mitosis, how many identical cells will you have?
a)
1
b)
2
c)
3
d)
4
95.
After meiosis is complete how many cells will there be?
a)
1
b)
2
c)
3
d)
4
96.
Another name for a sex cell is a:
a)
gamete
b)
embryo
c)
bone cell
d)
muscle cell
97.
A is:
B is:
C is:
a)
A: chromatid
B: centromere
C: chromosome
b)
A: chromosome
B: chromatid
C: centromere
c)
A: chromosome
B: centromere
C: chromatid
d)
A: centromere
B: chromosome
C: chromatid
98.

What error has occurred in this karyotype?

a)

monosomy

b)

trisomy

c)

no observable abnormality

99.

What chromosomal error is show here?

a)

monosomy

b)

trisomy

c)

deletion

d)

insertion

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