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Basic Genetics

Total questions: 94

Worksheet time: 4hrs 46mins

Name
Class
Date
1.

who is the father of genetics

a)

watson and crick

b)

gregor mendel

c)

karl Landsteiner

d)

rosalind franklin

2.
Genotype refers to the ...
a)
physical expression of the genes
b)
the possible combination of alleles in a gene
c)
whether an allele is dominant or recessive
d)
how an organism will appear
3.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
4.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
5.
What is a phenotype
a)
The genetic make up (code)
b)
The physical trait
6.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
7.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
8.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
9.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
10.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
11.
Snapdragon flowers come in red, pink and white.  What type of inheritance is this?
a)
Complete Dominance
b)
Incomplete Dominance
c)
Codominance
d)
Polygenic Inheritance
12.
Incomplete dominance means that the traits are
a)
expressed equally
b)
dominant
c)
recessive
d)
blended
13.

alternate form of a gene is called_______________

a)

a DNA

b)

a Phenotype

c)

a trait

d)

an allele

14.
If green is dominant over purple, then what is the genotype for this individual?
a)
Purple
b)
Green
c)
GG
d)
gg
15.
Brown fur color is dominant over black fur color. Which of the following is the actual genotype of ALL of the offspring in the next generation of this cross for fur color?
AA x aa
a)
AA
b)
Aa
c)
aa
d)
brown fur
16.
Which is the correct phenotype for this organism?
a)
BB
b)
blue
c)
green
d)
bb
17.
Tt is-
a)
homozygous dominant
b)
homozygous recessive
c)
heterozygous
d)
none of these
18.

Recessive alleles for complete dominance are-

a)

capital

b)

lowercase

c)

both

d)

neither

19.

Dominant alleles in complete dominance are-

a)

capital

b)

lowercase

c)

both

d)

neither

20.
phenotypes that is a blend of the heterozygous gene pair
a)
incomplete dominance
b)
multiple alleles
c)
regulatory genes
21.
the genetic code for the gene
a)
phenotype
b)
genotype
c)
homozygous
22.
phenotypes that shows both traits
a)
semi-dominant
b)
heterozygous
c)
codominance
23.
rule where genes come in only dominant or recessive
a)
Regulatory Genes
b)
Mendelian Inheritance
c)
Incomplete Dominance
24.
the following letters are an example of _______  dd
a)
recessive
b)
homozygous recessive
c)
homozygous dominant
d)
dominant
25.
Dd letters are an example of....
a)
heterozygous genes
b)
homozygous genes
c)
dominant genes
d)
recessive genes
26.
DD is an example of
a)
homozygous recessive
b)
dominant
c)
Homozygous dominant
d)
recessive
27.
Term for an organism that display two dominant phenotypes at the same time
a)
codominance
b)
incomplete dominance
c)
multiple alleles
d)
linked genes
28.
Sex cells are produced through the process of
a)
mitosis
b)
cytokinesis
c)
binary fission
d)
meiosis
29.
Where, in the eukaryotic cell, is DNA located?
a)
ribosomes
b)
nucleus
c)
E.R.
d)
cytoplasm
30.
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
31.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
32.
Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.
a)
DNA
b)
protein
c)
RNA
d)
glucose nucleic acid (GNA)
33.

If a heterozygous tall pea plant is crossed with a heterozygous tall pea plant. what percentage will be short

a)

100%

b)

75%

c)

50%

d)

25%

e)

0%

34.

IF a homozygous dominant tall pea plant is crossed with a heterozygous tall pea plant. what percentage will be short

a)

100%

b)

75%

c)

50%

d)

25%

e)

0%

35.

IF a homozygous dominant tall pea plant is crossed with a heterozygous tall pea plant. what percentage will be tall

a)

100%

b)

75%

c)

50%

d)

25%

e)

0%

36.

ABO Blood Type: What is the chance of a homozygous B blood type man and an AB blood type male having a homozygous B type child.

a)

100%

b)

75%

c)

50%

d)

25%

e)

0%

37.

ABO Blood Type: What is the chance of a AB blood type man and an AB blood type male having a homozygous B type child.

a)

100%

b)

75%

c)

50%

d)

25%

e)

0%

38.

a protein on the surface of a cell, specifically a red blood cell that identify the blood type is called

a)

antibody

b)

antigen

c)

selfy protein

d)

aglutination

39.

a protein made by white blood cell that fights off foreign substances is called

a)

antibody

b)

antigen

c)

selfy protein

d)

aglutination

40.

what allele codes for A blood

a)

IA

b)

IB

c)

i

41.

what allele codes for O blood

a)

IA

b)

IB

c)

i

42.

what allele codes for B blood

a)

IA

b)

IB

c)

i

43.

How many genes are involved in A- blood

a)

1

b)

2

c)

3

d)

4

44.

A heterozygous A+ is crossed with a O-. What is the chance of having an O- blood type child

a)

50%

b)

100%

c)

25%

d)

2/16

45.

Blood typing has IA , IB, i so is classified as

a)

codominance

b)

incomplete

c)

multiple alleles

d)

complete dominance

46.

IA IB

a)

codominance

b)

incomplete

c)

multiple alleles

d)

complete dominance

47.

IAi

a)

codominance

b)

incomplete

c)

multiple alleles

d)

complete dominance

48.

a karyotype is ...

a)

an arrangement of chromosomes from large to small

b)

chromosomes listed from small to large

c)

chromosomes listed in a random order

d)

a family tree of a trait

49.

a karyotype is useful for identify the following except for

a)

a specific gene

b)

gender

c)

trisomy (extra) or monosome (1 chromosome of a pain)

d)

deletion or insertion

50.

gender

a)

boy

b)

girl

51.

type of genetic disorder

a)

trisomy (extra)

b)

monosomy (missing one)

c)

insertion

d)

deletion

52.

gender

a)

boy

b)

girl

53.

if a person has 0- blood what anti-serums would react

a)

Anti-serum A, B, and Rh

b)

Anti-serum A, and B

c)

Anti-serum Rh

d)

none

54.

if a person has AB+ blood what anti-serums would react

a)

Anti-serum A, B, and Rh

b)

Anti-serum A, and B

c)

Anti-serum Rh

d)

none

55.
Tortoiseshell cats, like the one pictured, are a patchwork of red and black fur. These cats have one allele for red fur and one for black fur. Therefore, these two alleles are clearly...
a)
Incompletely dominant to each other
b)
Codominant
c)
Black must be dominant to red
d)
Linked to eye color
56.
A person with Turner syndrome has only one X chromosome. This means one of their gametes was missing a chromosome.
Which of the following is why gametes sometimes lack a complete chromosome?
a)
Incomplete dominance
b)
Nondisjunction
c)
Inversion mutation
d)
Substitution mutation
57.
What is this biological family tree called?
a)
Dichotomous key
b)
Cladogram
c)
Circle-Square Diagram
d)
Pedigree
58.
A chestnut colored horse and a cream horse mate and have baby horses. All of the babies are palomino - which is a color in-between chestnut and cream.
This color gene is probably...
a)
Incompletely dominant
b)
Codominant
c)
Sex-linked
d)
Dependent on the father's genes more
59.
Squirrels have a lot of important genes. Which of the following sets of squirrel genes is completely heterozygous?
a)
AaGgYyWw
b)
AAGGYYWW
c)
aaggyyww
d)
AaggYyww
60.
Turtle shell color and eye color are controlled by two separate genes. If two turtles mate and we are solving for both of these two traits, then this is a...
a)
Dihybrid cross
b)
Monohybrid cross
c)
Impossible cross
d)
Nonhybrid cross
61.
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%
62.
A green pea plant (Gg) is crossed with a yellow pea plant (gg). Describe the genotype of the offspring. (Be sure to remember that the capital letter is dominant).
a)
50% heterozygous and 25% homozygous recessive
b)
50% heterozygous and 50% homozygous recessive
c)
100% homozygous recessive
d)
25% heterozygous and 50% homozygous
63.

What is the probability of heterozygous offspring?

a)

25%

b)

50%

c)

0%

d)

100%

64.

Gretford is heterozygous for his head shape. If (R) is for a Round head, and (r) is for an Egg head, what is Gretford's genotype?

a)

RR

b)

Rr

c)

rr

d)

rR

65.

In plants, tall (T) is dominant to short (t).


Draw a punnett square and perform the following cross: Tt x Tt


What is the probability of producing a short plant?

a)

0%

b)

25%

c)

50%

d)

75%

66.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
67.

What genotype would go in box 2? And is it Homozygous or Heterozygous?

a)

BB Heterozygous

b)

Bb Heterozygous

c)

bb Homozygous

d)

Bb Homozygous

68.

Kyree is heterozygous. If (W) is for waves, and (w) if for no waves.


What is Kyree’s genotype & phenotype?

a)

WW : waves

b)

ww : waves

c)

Ww : no waves

d)

Ww : Waves

69.

physical traits

a)

genotype

b)

phenotype

c)

homozygous dominant

d)

heterozygous

e)

Homozygous recessive

70.

genetic makeup

a)

genotype

b)

phenotype

c)

homozygous dominant

d)

heterozygous

e)

Homozygous recessive

71.

same alleles

a)

genotype

b)

phenotype

c)

homozygous

d)

heterozygous

e)

genetics

72.

alternate form of a gene

a)

alleles

b)

dominant

c)

recessive

d)

monohybrid

e)

dihybrid

73.

will mask over/cover up another allele

a)

alleles

b)

dominant

c)

recessive

d)

monohybrid

e)

dihybrid

74.

only seen if inherited from both parents

a)

alleles

b)

dominant

c)

recessive

d)

monohybrid

e)

dihybrid

75.

father of genetics

a)

Watson and crick

b)

Rosalind franklin

c)

karl Landsteiner

d)

gregor mendel

76.

Principles: alleles are inherited randomly

a)

dominance

b)

independent assortment

c)

segregation

77.

Principles: alleles are separated into different gametes

a)

dominance

b)

independent assortment

c)

segregation

78.

Principles: one allele will mask over another allele

a)

dominance

b)

independent assortment

c)

segregation

79.

Type of inheritance: Tt

a)

co- dominance

b)

incomplete dominance

c)

complete dominance

80.

Type of inheritance: superscript allele

a)

co- dominance

b)

incomplete dominance

c)

complete dominance

81.

Type of inheritance: heterozygous is a blend

a)

co- dominance

b)

incomplete dominance

c)

complete dominance

82.

Type of inheritance: two different letters are used to represent the alleles (R= red, W = white)

a)

co- dominance

b)

incomplete dominance

c)

complete dominance

83.

Type of inheritance: dominant and recessive alleles

a)

co- dominance

b)

incomplete dominance

c)

complete dominance

84.

how many alleles are in each gamete in a monohybrid cross

a)

1

b)

2

c)

3

d)

4

e)

5

85.

how many alleles are in each gamete in a dihybrid cross

a)

1

b)

2

c)

3

d)

4

e)

5

86.

in blood typing there are 3 alleles so it classified as which one below

a)

complete dominance

b)

co- dominance

c)

multiple alleles

d)

incomplete dominance

87.

red, white, and pink phenotypes

a)

complete dominance

b)

co- dominance

c)

multiple alleles

d)

incomplete dominance

88.

If Bob is

A- (Heterozygous for ABO gene and homozygous for Rh factor) and Lucy is O+

(heterozygous for Rh factor), could they have a child that is negative?

a)

Yes

b)

No

89.

A lady

claims to have an O- child, but she is AB+. Is this possible look for the best

explanation below?

a)

No, she

cannot have a negative blood type child because she is positive.

b)

No, she can only give “D” for the Rh factor.

c)

No, she

cannot give an “i” allele to her child.

d)

Yes, she

can give her child an “i” allele.

e)

Yes, she

can because she can have a negative blood type child.

90.

If a man is

AB+ (heterozygous for Rh factor) and he marries Maddie who is B – (heterozygous

for ABO gene), what is their offspring genotypic summary?

a)

IAIBDD 4/16, IAiDd 4/16, IAidd 4/16, IBiDd 4/16

b)

IAIBDD 2/16, IAIBdd 2/16, IAiDd 2/16, IAidd

2/16, IBiDd 2/16, IBidd 2/16, iiDd 2/16, iiDD 2/16

c)

IAIBDD 2/16, IAIBdd 2/16, IAiDd 2/16, IAidd

2/16, IBiDd 2/16, IBidd 2/16, IBIBDd

2/16, IBIBdd 2/16

d)

IAIBDD 2/16, IAIBdd 2/16, IAiDd 2/16, IAidd

2/16, IBiDd 2/16, IBiDD 2/16, IBIBDd

2/16, IBIBDD 2/16

91.

If a man is homozygous A+ and he marries an A- female, what is their phenotype summary?

a)

100% A-

b)

100% A+

c)

50% A+ and 50% A-

d)

50% A+, 25% A- , and 25% O-

92.

Proteins that are created by your white blood cells to fight off foreign substances that

invade the body.

a)

antibodies

b)

amino acid

c)

antigens

d)

anti-serum

93.

used in lab to identify the blood type

a)

antibodies

b)

amino acid

c)

antigens

d)

anti-serum

94.

If a mother

has B- and her husband is AB+, could they have a child that has incompatible

blood from mom?

a)

yes, if the child is positive mom would make antibody Rh so would fight off baby blood type

b)

No, mom would be 100% compatible no matter that childs blood type

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