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5 Test--Make sure you can do dihybrid crosses and pedigrees.

Total questions: 81

Worksheet time: 1hrs 13mins

Name
Class
Date
1.

What is the universal blood donor?

a)

O-

b)

O+

c)

AB-

d)

AB+

2.

What is the universal blood recipient?

a)

O-

b)

O+

c)

AB-

d)

AB+

3.
A pair of identical chromosomes shown in a karyotype, one inherited from mom, and one inherited from dad are called
a)
sister chromotids
b)
centromeres
c)
homologous chromosomes
d)
autosomes
4.
Chromosome pairs 1-22 are referred to as
a)
sex chromosomes
b)
sister chromatids
c)
a karyotype
d)
autsomes
5.
What is the sex of this individual?
a)
female
b)
male
6.
What is the sex of this individual?
a)
female
b)
male
7.
The haploid number of human chromosomes is
a)
11
b)
12
c)
23
d)
46
8.
The diploid number of human chromosomes is
a)
23
b)
46
c)
92
9.
Each identical side of a chromosome is the 
a)
centromere
b)
chromatin
c)
centriole
d)
chromatid
10.
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
11.

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

a)

bacteria

b)

prokaryotes

c)

gametes

d)

pathogens

12.

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

a)

gene

b)

gamete

c)

chromosome

d)

chromatid

13.

A _________ is DNA tightly coiled around proteins.

a)

gene

b)

chromosome

c)

trait

d)

mutation

14.

Body cells are also called _________ cells.

a)

normal

b)

prokaryotic

c)

pathogens

d)

somatic

15.

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

a)

diploid

b)

haploid

c)

triploid

d)

polyploid

16.

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

a)

diploid

b)

polyploid

c)

triploid

d)

haploid

17.

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

a)

gene

b)

chromosome

c)

zygote

d)

embryo

18.

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

a)

sex chromosomes

b)

autosomes

c)

homologous

d)

genes

19.
Which would be considered a somatic cell?
a)
Sperm cell
b)
Egg Cell
c)
Skin Cell
d)
All of these
20.
Which of the following would be considered a Gamete cell?
a)
Egg Cell
b)
Sperm Cell
c)
Both of these
d)
None of these
21.

What is an allele?

a)

A gene

b)

A genotype

c)

A phenotype

d)

Different forms of a gene

22.

A phenotype is

a)

Physical appearence

b)

Dominance

c)

Recessiveness

d)

Letter combinatons

23.
exchange of chromosome segments between homologous chromosomes
a)
crossing over
b)
incomplete dominance
c)
heterozygous
d)
autosomes
24.
alternative forms of a gene
a)
traits
b)
alleles
c)
phenotype
d)
chromosome
25.
A genotype in which the two alleles are the same
a)
divergent
b)
heterozygous
c)
homozygous
d)
convergent
26.
A set of alleles that an individual has for a trait or characteristic
a)
genotype
b)
phenotype
c)
karyotype
d)
gametes
27.
A genotype in which the two alleles are different
a)
homozygous
b)
heterozygous
c)
divergent 
d)
convergent
28.
The expressed form of the trait when two different alleles appear together
a)
recessive
b)
redundant 
c)
repetitive 
d)
dominant
29.
The trait not expressed when the dominant form is present
a)
excessive
b)
genetic code
c)
recessive
d)
dominant 
30.

Reproduction by mitosis or binary fission, with no sperm or egg.

a)

Sexual Reproduction

b)

Asexual Reproduction

c)

Meiosis

d)

Sperm

31.

Differences in offspring and parents due to sexual reproduction.

a)

Mitosis

b)

Asexual Reproduction

c)

Clones

d)

Genetic Variation

32.

The production of sperm or egg with half the normal number of chromosomes compared to normal body cells.

a)

Stem Cell

b)

Clone

c)

Mitosis

d)

Meiosis

33.

The first 22 pairs of chromosomes that do not determine the sex of an individual.

a)

Karyotype

b)

Chromosomes

c)

Autosomes

d)

Centromeres

34.

The 23rd pair of chromosomes that determine the sex of an organism.

a)

Sex Chromosomes

b)

Autosomes

c)

Alleles

d)

Gametes

35.

Homologous pairs sometimes exchange alleles from the same locus during the first division of meiosis, increasing genetic variation.

a)

Diploid

b)

Haploid

c)

Crossing Over

d)

Independent Assortment

36.

The smaller of the two possible chromosomes that make up the sex chromosomes. Found only in males.

a)

X Chromosome

b)

Y Chromosome

c)

Autosome

d)

Allele

37.

Is this a recessive or dominant inherited disorder?

a)

Dominant

b)

Recessive

38.

The letters Aa refer to the ______ of an individual

a)

Genotype

b)

Phenotype

39.

Sex-linked genes are found on the _____ chromosomes.

a)

XX

b)

XY

c)

Autosomal

d)

Sex

40.

A carrier is someone who is _________ for a recessive allele that causes a disorder.

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous recessive

41.

A disorder is caused by the recessive allele. People with which genotype will have the disorder?

a)

SS

b)

Ss

c)

ss

42.

All of the following are examples of polygenic traits, EXCEPT

a)

Height

b)

Eye color

c)

Freckles

d)

Skin color

43.

Human gametes have

a)

22 autosomes and 1 sex chromosome

b)

1 autosome and 22 sex chromosomes

c)

45 autosomes and 1 sex chromosome

d)

1 autosome and 45 sex chromosomes

44.

pairs of chromosomes containing genes that code for the same traits are called

a)

heterologous chromosomes

b)

homologous chromosomes

c)

autosomes

d)

sex chromosomes

45.

a diploid human cell has how many chromosomes?

a)

26

b)

23

c)

46

d)

43

46.

You can trace genetic disorder through generations of a family with a

a)

punnett square

b)

pedigree

c)

karyotype

d)

gene map

47.

What is the genotypic ratio in a cross between two heterozygous parents?

a)

1:2:1

b)

3:1

c)

9:3:3:1

d)

1:3

48.

What is the blood type of a person who inherited a B allele from one parent and an O allele from the other?

a)

type A

b)

type B

c)

type O

d)

type AB

49.

This spotted diary cow's hair color shows

a)

Incomplete dominance

b)

Codominance

c)

Recessive dominance

d)

Speckled dominance

50.

I breed Rose with red flowers and a rose with white flowers. The offspring all have pink flowers. This is known as

a)

Incomplete dominance

b)

Punnett Cross

c)

Codominance

d)

Antidominance

51.

A person who has one recessive allele for a trait, but does not have the trait

a)

Bearer

b)

Transporter

c)

Carrier

d)

Courier

52.

In a pedigree, what symbols represent females?

a)

Squares

b)

Circles

c)

Hexagons

d)

Triangles

53.

In a pedigree, what symbols represent males?

a)

Squares

b)

Triangles

c)

Circles

d)

Octagons

54.

In a pedigree, symbols that are NOT shaded in mean what?

a)

The person does not show the trait and is not a carrier

b)

The person shows/has the trait

c)

The person's history is a blank slate

d)

The person is a carrier

55.

In a pedigree, half shaded in symbols mean what?

a)

The person does not show the trait, and they are not a carrier

b)

The person has the trait

c)

The person has two different colored eyes

d)

The person does not show the trait, but they are a carrier

56.
What do we call the table used to calculate the probability of an offspring's genotype?
a)
Punnett square
b)
Venn diagram
c)
Golden ratio
d)
Fibonacci sequence
57.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
58.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
59.
T4 - What genotype is missing from this Punnett Square?
a)
RrYy
b)
RRYY
c)
rryy
d)
RrYY
60.
T4 - Based off this Punnett Square, what fraction of the offspring will have wrinkled, yellow seeds?
a)
9/16
b)
3/16
c)
1/16
d)
16/16
61.

How many chromosomes are in the body cell of an organism that has a haploid number of 12

a)

6

b)

12

c)

24

d)

48

62.

When Gregor Mendel crossed a tall plant with a short plant, the F1 plants inherited

a)

one allele from each parent

b)

two alleles from each parent

c)

four alleles from each parent

d)

eight alleles from each parent

63.

The scientific study of heredity is called

a)

anatomy

b)

ecology

c)

genetics

d)

biology

64.

What is it called when the male and female gametes produce a zygote?

a)

mitosis

b)

meiosis

c)

fertilization

d)

polymerization

65.
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
66.
What type of inheritance do two alleles have if their traits blend together? 
a)
Incomplete Dominance
b)
Co-Dominance
c)
Mendelian Inheritance
d)
Homozygous Inheritance
67.
A breed of chicken shows codominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be:
a)
all black
b)
all white
c)
all gray
d)
speckled black and white
68.
What does heterozygous mean?
a)
An organism that has the same genes for a trait (TT or tt)
b)
An organism that has different genes for a trait (Tt)
c)
When neither gene is fully dominant; offspring is a mixture of both
d)
the different forms of a trait (hair color--> brown, blonde, red
69.

This type of inheritance pattern is a MIXTURE or BLEND of both traits.

a)

incomplete dominance

b)

co-dominance

c)

complete dominance

d)

recessive pattern

70.
If a man with type AB blood has a child with a woman who is type A (A i) blood, which is NOT a possibility for the child?
a)
A
b)
B
c)
AB
d)
O
71.
A parent with the alleles IAIB could produce offspring with which types of blood?
a)
Type A
b)
Type B
c)
Type AB
d)
Type A, Type B, or Type AB
72.
What pattern of inheritance is shown in this image?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
73.

Skin color, height, body shape and eye color are examples of:

a)

Polygenic Inheritance

b)

Epistasis

c)

heterozygous

d)

codominance

74.

Blood types are an example of

a)

incomplete dominance

b)

sex linked traits

c)

multiple alleles

d)

polygenics

75.
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
76.

Unlike mitosis, meiosis of a single cell results in the formation of

a)

2 genetically identical cells

b)

2 genetically different cells

c)

4 genetically identical sperm

d)

4 genetically different sperm

77.

What is the genotypic ratio resulting from a homozygous dominant crossed with a heterozygous individual?

a)

0:4:0

b)

1:2:1

c)

2:2:0

d)

1:3:1

78.

Crossing over occurs during meiosis in

a)

prophase I

b)

prophase II

c)

metaphase I

d)

metaphase II

79.

After a cell finishes meiosis I,

a)

2 cells with 23 chromosomes are formed

b)

2 cells with 46 chromosomes are formed

c)

4 cells with 23 chromosomes are formed

d)

4 cells with 46 chromosomes are formed

80.

What happens to the chromosomes number during meiosis?

a)

stays the same

b)

it doubles

c)

it is divided by 2

81.

A situation is which a gene has more than two alleles is known as __________.

a)

multiple alleles

b)

polygenetic

c)

codominance

d)

incomplete dominances

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