wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

MEGA Genetics Review

Total questions: 150

Worksheet time: 3hrs 51mins

Name
Class
Date
1.
What gamete possibilities could come from this parent's genotype?
a)
AB, AB, aB, aB
b)
Ab, AB, Ab, ab
c)
Ab, Ab, Ab, Ab
d)
AB, aB, ab, aB
2.
What gamete possibilities could come from this parent's genotype?
a)
aB, ab, AB, Ab
b)
aB, Ab, AB, AB
c)
AB, aB, AB, Ab
d)
aB, ab, aB, ab
3.
What gamete possibilities could come from this parent's genotype?
a)
aB, ab, AB, Ab
b)
Ab, AB, Ab, AB
c)
AB, AB, Ab, AB
d)
Ab, AB, ab, aB
4.
What goes in box 1
a)
AABb
b)
AABB
c)
aabb
d)
AaBb
5.
What goes in box 2
a)
AABb
b)
AaBb
c)
aabb
d)
AaBB
6.
What goes in box 3
a)
Aabb
b)
AABB
c)
AAbb
d)
aaBb
7.
What goes in box 4
a)
AABb
b)
AABB
c)
AAbb
d)
AaBB
8.
What goes in box 5
a)
AABB
b)
AaBb
c)
AaBb
d)
AAbb
9.
What goes in box 6
a)
AaBB
b)
AABB
c)
aaBB
d)
AAbb
10.

What goes in box 9

a)

AaBB

b)

ABAB

c)

aBaB

d)

abab

11.

What goes in box 13

a)

AaBb

b)

abab

c)

ABAB

d)

AbAb

12.

What goes in box 15

a)

aabb

b)

ABAB

c)

aBaB

d)

AbAb

13.
What genotype is missing from this Punnett Square?
a)
RrYy
b)
RRYY
c)
rryy
d)
RrYY
14.
What is the genotype for a pea plant heterozygous for round seeds (R), and homozygous recessive for green seeds (y)?
a)
Ry
b)
RRyy
c)
RrYy
d)
Rryy
15.
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
16.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
17.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
18.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
19.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
20.
In a dihybrid cross
a)
one trait is crossed.
b)
two traits are crossed.
c)
four boxes are needed for the punnett square.
d)
mom's alleles are dominant.
21.
Using the dihybrid cross and key provided, what is the probability of the offspring being tall and white?
a)
9
b)
2
c)
3
d)
6
22.

Which of the following is the best example for a heterozygous genotype?

a)

AA

b)

AbDD

c)

Bb

d)

bb

23.
parent 1: GgBB
parent 2: ggBb
Find the gametes for parent 1.
a)
GB, GB, gB, gB
b)
gB, gb, gB, gb
c)
Gg, BB, GB, GB
d)
gg, Bb, gB, gb
24.
R= red 
r= green
Which color is recessive?
a)
red
b)
green
c)
both
d)
brown
25.
Which of the following identifies the gametes?
a)
A
b)
B
c)
C
d)
D
26.
Which of the following identifies the phenotypes?
a)
A
b)
B
c)
C
d)
D
27.
Which trait is always expressed when present?
a)
recessive
b)
dominant
c)
phenotype
d)
allele
28.
Which trait is always expressed when present?
a)
recessive
b)
dominant
c)
phenotype
d)
allele
29.

This image is an example of a _____________ cross.

a)

Monohybrid

b)

Dihybrid

c)

Purebred

d)

Pure Breeding

30.
An organism’s genetic makeup, or allele combinations
a)
Recessive
b)
Genotype
c)
Phenotype
d)
Heterozygous
31.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
32.
aa always shows up as
a)
dominant
b)
recessive
33.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
34.
In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?
a)
0%
b)
25%
c)
50%
d)
75%
35.
A homozygous dominant round seeded plant is crossed with a homozygous recessive wrinkled seeded plant. What are the genotypes of the parents?
a)
RR X rr
b)
Rr X rr
c)
rr X rr
d)
RR X Rr
36.

Albinism is an autosomal recessive condition. Which circle graph shows the genotype probability when an albino female mates with a male that is heterozygous for the albinism trait?

a)
b)
c)
d)
37.

Chickens can have different types of feathers. Frizzled feathers curl toward a chicken’s head. Assume that feather type is determined by a single gene and that the allele for frizzled feathers is dominant over the allele for straight feathers. In a cross between two chickens with straight feathers, what percentage of the offspring can be expected to have frizzled feathers?

a)

0%

b)

25%

c)

50%

d)

100%

38.
G = green         g = yellow
Cross two plants that are heterozygous for green pods.
What is the phenotype ratio?
a)
25% green, 75% yellow
b)
 25% green, 75% yellow
c)
50% green, 50% yellow
d)
75% green, 25% yellow
39.

In humans blood type is determined by the A, B, and O alleles. The A and B alleles are codominant to each other and dominant over the O allele. An individual with the AO genotype and an individual with the BO genotype can produce offspring with which of the following phenotypes?

a)

O only

b)

A or B only

c)

A, B, or O only

d)

A, B, AB, or O

40.

In cattle the allele for cloven hooves (H) is dominant over the allele for mule-foot hooves (h).

What is the probability of cloven hooves in the offspring of parents that are heterozygous for the trait?

a)

25%

b)

50%

c)

75%

d)

100%

41.

In horses, the gene for white hair ( W ) is dominant to the gene for non-white hair ( w ). A horse with genotype ( WW ) was crossed with a horse with genotype ( ww ).

What fraction of the offspring should be expected to have white hair?

a)

none

b)

one-half

c)

three-quarters

d)

all

42.
when one allele is not completely dominant over the other - blending of two traits
a)
Codominance
b)
Complete dominance
c)
incomplete dominance
d)
none of these
43.
condition in which both alleles for a gene are expressed when present - both traits are visible
a)
Codominance
b)
Dominance
c)
Complete dominance
d)
Incomplete dominance
44.
traits you are born with - passed down from your parents
a)
acquired traits
b)
inherited traits
c)
dominant traits
d)
recessive traits
45.
a trait that is learned or developed over time 
a)
inherited trait
b)
acquired trait
c)
dominant trait
d)
recessive trait
46.
this image is an example of
a)
codominance
b)
dominance
c)
incomplete dominance
47.
In this image, the boy in blue is dominant or recessive?
a)
dominant
b)
recessive
48.
In this image, the capital B is dominant or recessive
a)
dominant
b)
recessive
49.
the characteristics of a trait that you can see
a)
genotype
b)
phenotype
50.
the genetic code (make up) of a trait
a)
genotype
b)
phenotype
51.
identical alleles, two caps or two lowercase
a)
homozygous
b)
heterozygous
52.
two different alleles, one cap one lowercase
a)
homozygous
b)
heterozygous
53.
What type of inheritance do two alleles have if their traits blend together? 
a)
Incomplete Dominance
b)
Co-Dominance
54.
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
55.
This is an example of ___________.
a)
Incomplete Dominance
b)
Codominance
56.

An organisms physical traits are called what?

a)

Genotype

b)

Genetic Variation

c)

Phenotype

d)

Homozygous

57.

Recessive traits are hidden when the dominant traits are present.

a)

True

b)

False

58.

The heterozygous phenotype is what?

a)

PP

b)

Pp

c)

Purple

d)

White

59.
Alternative forms of a gene are called
a)
Alleles
b)
Homozygous
c)
DNA
d)
Genetics
60.
The allele combinations
a)
genetics
b)
mitosis
c)
genotype
d)
phenotype
61.
This trait will always be expressed if present because it will mask the expression of others
a)
stem cells
b)
heterozygous
c)
dominant
d)
recessive
62.
Hair colour is an example of
a)
genotype
b)
phenotype
63.
The genotype of:  bb   will have the PHENOTYPE of...
a)
black fur
b)
white fur
c)
course hair
d)
fine hair
64.
The genotype of:  AA  will have the PHENOTYPE of...
a)
albinism
b)
normal pigment
c)
albino carrier
65.
If a trait is recessive, it needs to be inherited from ___ parents to be 'expressed'.
a)
one
b)
both
66.

Sexual reproduction results in which of the following.

a)

Offspring with completely different traits as the parents.

b)

Offspring with identical traits as the parents.

c)

Offspring with identical traits as their ancestor.

d)

Offspring with a combination of traits as the parents.

67.

Which of the following is an example of an allele?

a)

H

b)

HH

c)

Hr

d)

RRR

68.

If your genotype is Bb, what type of trait would you express as a phenotype?

a)

Dominant

b)

Recessive

c)

Both the dominant and recessive traits

69.

A heterozgous genotype results in what type of expression of phenotype?

a)

Recessive Phenotype

b)

Dominant Phenotype

c)

Both traits being expressed

d)

Completely new traits

70.
The allele combinations
a)
genetics
b)
mitosis
c)
genotype
d)
phenotype
71.
Which of the following is homozygous dominant?
a)
Jj
b)
Rr
c)
MM
d)
ee
72.
Mary is heterozygous. If F for freckles, and f is for no freckles, what is Mary's phenotype?
a)
Freckles
b)
No Freckles
c)
A few Freckles
d)
One Freckle
73.
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
74.
AA and Aa always show up as
a)
dominant
b)
recessive
75.
aa always shows up as
a)
dominant
b)
recessive
76.

How would we describe the genotype at bottom right of punnet square (hh).

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous

d)

Short, rather than tall

77.

What is the probability that offspring will be heterozygous?

a)

25%

b)

50%

c)

75%

d)

100%

78.
AA
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous 
d)
Hetergeneous
79.
dd
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous 
d)
Hetergeneous
80.
LL
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous 
d)
Hetergeneous
81.
rr
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous 
d)
Hetergeneous
82.
pp
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous 
d)
Hetergeneous
83.
Kk
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous 
d)
Hetergeneous
84.
tt
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous 
d)
Hetergeneous
85.
Ss
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous 
d)
Hetergeneous
86.
WW
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous 
d)
Hetergeneous
87.
Hh
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous 
d)
Hetergeneous
88.
vv
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous 
d)
Hetergeneous
89.
Alternative forms of a gene are called
a)
Alleles
b)
Homozygous
c)
DNA
d)
Genetics
90.
Having the genes for baldness is an example of
a)
genotype
b)
phenotype
91.
Being a carrier of a genetic disorder is an example of
a)
genotype
b)
phenotype
92.
Having blue eyes is an example of
a)
genotype
b)
phenotype
93.
Having the genes for blue eyes is an example of
a)
genotype
b)
phenotype
94.
Usain Bolt's genes affect his height. Being 1.95m tall is an example of
a)
genotype
b)
phenotype
95.
Usain Bolt trains daily to improve his muscular explosiveness. Muscle size is an example of
a)
genotype
b)
phenotype
96.
If something is heterozygous, it is also...
a)
purebred
b)
hybrid
c)
dominant
d)
recessive
97.
True/False: Different genotypes can code for the same phenotype.
a)
True
b)
False
98.
This image shows a...
a)
Punnett Square
b)
Phenotype
c)
Genotype
d)
Dominant allele
99.
Another word for homozygous is...
a)
purebred
b)
hybrid
c)
heterozygous
d)
dominant
100.
 Dominant alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
101.
 Recessive alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
102.
Which is the correct phenotype for this organism?
a)
BB
b)
blue
c)
green
d)
bb
103.
What is the genotype for this organism?
(E= 3 eyes, e= 1 eye)
a)
EE
b)
Ee
c)
ee
d)
EE or Ee
104.
If green is dominant over purple, then what is the genotype for this individual?
a)
Purple
b)
Green
c)
GG
d)
gg
105.
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
106.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
107.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
108.

The word DNA is abbreviated for is ________________________.

a)

Disconuggets Acid

b)

Dioramanucleous Acid

c)

Deoxyribonucleic Acid

d)

Detoxifynubs Acid

109.

Sometimes mistakes occur curing cell division when DNA is being copied. What scientific word is used to describe the permanent changes in DNA?

a)

mutations

b)

alterations

c)

transformations

d)

mutilitions

110.

Genes are short segments of DNA and are located on the ______ in a cell.

a)

vaculoes

b)

chromosomes

c)

ribosomes

d)

lysosmes

111.
What determines body traits?
a)
Genes
b)
Cells
c)
Bones
d)
Structures
112.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
113.

Which sequence of DNA bases would pair with this part of a strand

ATG TGA

a)

ATG TGA

b)

TAC ACT

c)

GTA AGT

d)

CAT TCA

114.
What determines the code, or information, of a DNA molecule?
a)
the shape (structure) of the nitrogen bases
b)
the order (sequence) of the nitrogen bases
c)
the color of the nitrogen bases
d)
the frequency (number) of nitrogen bases
115.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
116.
What are the 4 nitrogen bases?
a)
adenine, thymine, cytoplasm, and guanine
b)
adenine, thymine cytosine, and guanine
c)
adenine, thymine, cytosine, and gylcerol
d)
adenine, thymine, cytosine, and glucose
117.
What kind of information does DNA carry?
a)
genetic
b)
nuclear
c)
cell structure
d)
it doesn't carry any info
118.
Which sequence of DNA bases would pair with this partiaal strand
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
119.

What are the building blocks of DNA?

a)

amino acids

b)

nucleotides

c)

polysaccharides

d)

glycerol

120.
Which 2 molecules forms the sides (backbone) of the DNA ladder?
a)
deoxyribose and adenine
b)
deoxyribose and a hydrogen bond
c)
sugar and the nucleus
d)
deoxyribose (sugar) and phosphate
121.
Which shows the correct complementary base pairing for DNA?
a)
C-A, T-G
b)
A-G, C-T
c)
C-G, U-A
d)
T-A, G-C
122.
What bonds the nitrogen bases in the center of the DNA strand?
a)
Covalent Bonds
b)
Ionic Bonds
c)
Hydrogen Bonds
d)
Metallic Bonds
123.
What organisms have DNA?
a)
Virus
b)
Plant
c)
Bacteria
d)
All living things
124.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
125.
In a sample of DNA, 20 percent is Adenine. What are the percentages of the other bases?
a)
Thymine - 30 percent, Cytosine 25 percent, Guanine 25 percent
b)
Cytosine - 20 percent, Thymine - 30 percent, Guanine 25 percent
c)
Thymine - 20 percent, Cytosine 30 percent, Guanine 30 percent
d)
Thymine - 30 percent, Cytosine 30 percent, Guanine 20 percent
126.
DNA codes for...
a)
cholesterol
b)
proteins
c)
fatty acids
d)
a sandwich
127.
The basic unit of structure and function in all living things.
a)
DNA
b)
gene
c)
cell
d)
allele
128.
Genetic trait that is represented with a capital letter and will always show if it is present.
a)
recessive trait
b)
dominant trait
c)
heredity
d)
allele
129.
In RNA, Uracil pairs with ______. 
a)
cytosine
b)
adenine
c)
guanine
d)
thymine
130.
The process to go from DNA to mRNA is _______
a)
translation
b)
transcription
c)
replication
131.
The process to go from mRNA to a protein is called ____
a)
transcription
b)
rRNA
c)
replication
d)
translation
132.
DNA holds the code for
a)
lipids
b)
carbohydrates
c)
protein
d)
sugar
133.
Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand: 
GTAGTCA
a)
UATUAGA
b)
ACGACTG
c)
CAUCAGU
d)
CATCAGT
134.
What amino acid is represented by the codon UUA?
a)
Phenylalanine
b)
Tyrosine
c)
Leucine
d)
Stop codon
135.
What is the location in the cell for translation?
a)
nucleus
b)
mitochondria
c)
ribosome
d)
chloroplast
136.
What is the three base sequence of mRNA that codes for a single amino acid?
a)
Anticodon
b)
Codon
c)
Protein
137.
What is the location in the cell for transcription?
a)
nucleus
b)
cytoplasm
c)
ribosome
d)
mitochondria
138.
Does the order of amino acids in a protein matter?
a)
YES!
b)
NO!
139.
What is the correct amino acid sequence for the mRNA code AUGCCAGUAUGA
a)
Met-Pro-Ala-Val
b)
Met-Pro-Val
c)
Tyr-Gly-His
d)
Tyr-Gly-Arg-His
140.
How many amino acids are coded for by this sequence of nucleotides:
ATG GGA ACT CCA
a)
4
b)
2
c)
6
d)
12
141.

Mutations are SOMETIMES helpful to the organism.

a)

true

b)

false

142.

A mutation is defined as:

a)

A change in the cell's structure

b)

Anything that changes in an embryo

c)

Any change in the physical features of a human

d)

A change in the DNA sequence

143.
An organism gets to choose if the mutation is helpful, harmful or neutral.
a)
True
b)
False
144.

Mutations can benefit humans because they can:

a)

Cause illness

b)

Make an organism more suited to live in its environment.

c)

Make organisms live shorter lives

d)

Cause organisms to grow extra limbs.

145.

When a beneficial mutation has occurred in an entire population of an organism, that species is said to have

a)

gone extict

b)

evolved

146.
Are all mutations bad?
a)
Yes
b)
No
147.

A mutation is any change in the _________ of a gene or chromosome.

a)

DNA

b)

mRNA

c)

rRNA

148.

What kind of mutation is caused by the addition of a new nucleotide?

a)

Substitution

b)

Insertion

c)

Deletion

d)

None of the above

149.

How many nucleotides make up one amino acid?

a)

3

b)

2

c)

4

d)

1

150.

What do you use when determining the amino acid in one codon?

a)

mRNA sequence

b)

DNA sequence

Similar Resources on Wayground

2018-2019 Biology Final Review

154 questions

2018-2019 Biology Final Review

quiz

Worksheet

•

9th Grade

Biology 2nd semester review

148 questions

Biology 2nd semester review

quiz

Worksheet

•

9th Grade

Bio_EC

149 questions

Bio_EC

quiz

Worksheet

•

9th - 12th Grade

Biology Final Study Guide

148 questions

Biology Final Study Guide

quiz

Worksheet

•

KG - Professional Dev...

All Year Review

148 questions

All Year Review

quiz

Worksheet

•

9th Grade

Biology STAAR Review

150 questions

Biology STAAR Review

quiz

Worksheet

•

9th Grade

EOC Review

151 questions

EOC Review

quiz

Worksheet

•

9th - 12th Grade