Font size
S
M
L
XL
WorksheetsBiology Semester 2 Review
Total questions: 85
Worksheet time: 5hrs 9mins
Name
Class
Date
1.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
12.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
13.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
4.
T - tall and t = short
In the punnett square below, what belongs in the missing square
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
5.
AA and Aa always show up as
a)
dominant
b)
recessive
15.
aa always shows up as
a)
dominant
b)
recessive
7.
Aa is
a)
homozygous
b)
heterozygous
8.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
9.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
11.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
11.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
12.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
13.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
14.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
15.
aa always shows up as
a)
dominant
b)
recessive
16.
What gender has an X and a Y chromosome?
a)
male
b)
female
c)
transgender
d)
all of the above
17.
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%
18.
A human usually has _____ total chromosomes.
a)
6
b)
22
c)
4
d)
46
19.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
d)
recessive pattern
20.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
21.
What type of chromosomal abnormality do people with Down Syndrome have?
a)
trisomy 21
b)
monosomy 21
c)
recessive inheritance
d)
dominant inheritance
22.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
23.
In the second generation-how many people are carriers of the trait?
a)
2
b)
3
c)
5
d)
6
24.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
25.
A boy who is colorblind inherited the disorder from his
a)
Mother
b)
Father
c)
Either Parent
d)
None of the above
26.
If a man does not have hemophilia (X linked trait), what percentage of his daughters will have hemophilia?
a)
100%
b)
75%
c)
50%
d)
0%
27.
Organism that is genetically engineered by inserting a gene from another organism.
a)
bacteria
b)
forensics
c)
transgenic organism
d)
penicillin
28.
The process by which all organisms change slowly over time because of slight gene variations is called
a)
natural selection
b)
artificial selection
c)
evolution
d)
gene pool
29.
Who observed variations in the characteristics of plants and animals on different islands of the Galapagos?
a)
James Hutton
b)
Charles Lyell
c)
Jean-Baptiste Lamarck
d)
Charles Darwin
30.
An inherited characteristic that increases an organism's ability to survive and reproduce in its specific environment is called (n)
a)
vestigial structure
b)
adaptation
c)
speciation
d)
analagous structure
31.
How well an organism survives and reproduces in its environment can be described as its
a)
fitness
b)
homologies
c)
common descent
d)
analogies
32.
Which of the following phrases best describes the results of natural selection?
a)
natural variation found in all populations
b)
unrelated species living in different locations
c)
changes in the inherited characteristics of a population over time
d)
struggle for existence undergone by all iving things
33.
Which of the following conditions are necessary for natural selection to occur?
a)
overproduction of offspring
b)
variation within a population
c)
struggle for existence
d)
all of the above
34.
Which of the following phrases best describes the results of natural selection?
a)
natural variation found in all populations
b)
unrelated species living in different locations
c)
changes in the inherited characteristics of a population over time
d)
struggle for existence undergone by all iving things
35.
Members of this kingdom never have a cell wall
a)
Animalia
b)
Plantae
c)
Archaebacteria
d)
Protista
36.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
37.
An organism that produces its own food supply from inorganic compounds is called a(an)
a)
heterotroph
b)
consumer
c)
detritivore
d)
autotroph
38.
What is the term for each step in the transfer of energy and matter within a biological community?
a)
energy path
b)
food web
c)
trophic level
d)
food pyramid
39.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
40.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
41.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose sugar and adenine
b)
deoxyribose sugar and a hydrogen bond
c)
deoxyribose sugar and the nucleus
d)
deoxyribose sugar and phosphate
42.
A process in which DNA has the unique ability to make an exact copy of itself.
a)
Replication
b)
Translation
c)
Transcription
43.
What is the correct complimentary strand for the following DNA?ATCGAG
a)
TACGAG
b)
ATCGAG
c)
TAGCTG
d)
TAGCTC
44.
What are the nucleotides made of?
a)
Sugar, Phosphate, nitrogen base
b)
Phosphate, Adenine, nitrogen base
c)
Thymine, Adenine, Cytomine
d)
Phosphate, Nitrogen, Adenine
45.
RNA contains the sugar
a)
ribose
b)
deoxyribose
c)
glucose
d)
lactose
46.
Which of the following statements is true?
a)
DNA is single-stranded
b)
RNA is single-stranded
c)
DNA contains uracil
d)
RNA contains deoxyribose
47.
Which type of RNA takes the instructions from the nucleus to the cytoplasm?
a)
mRNA
b)
tRNA
c)
rRNA
d)
RNA polymerase
48.
What is the template for mRNA?
a)
DNA
b)
tRNA
c)
rRNA
d)
proteins
49.
How many nucleotides make a codon?
a)
1
b)
2
c)
3
d)
6
50.
What is the product of translation?
a)
DNA
b)
mRNA
c)
tRNA
d)
proteins
51.
Where is DNA located?
a)
ribosome
b)
cytoplasm
c)
nucleus
d)
lysosome
52.
The anticodon is located on
a)
DNA
b)
mRNA
c)
tRNA
d)
rRNA
53.
The purpose of selective breeding is to
a)
Get bigger animals
b)
get smaller animals
c)
create animals with desirable traits
d)
create animals with bad traits
54.
In natural selection, the selective agent is the
a)
humans
b)
mutations
c)
breeders
d)
environment
55.
which of the folllowing is an exammple of a vestigial structure?
a)
the wings of a red-tailed hawk
b)
the hind limbs of a house cat
c)
the fins of sharks
d)
the wings of an ostrich
56.
What is suggested by the anatomical similarity of different species of vertebrates?
a)
no evolutionary relationships between the groups
b)
recent common ancestry
c)
similar environments in the past
d)
evolution from a distant common ancestor
57.
Some organisms that share a common ancestor have features that have different functions, but similar structures. These are known as
a)
vestigial structures
b)
analogous structures
c)
homologous structures
d)
fossil structures
58.
Two organisms that are closely related would have
a)
very similar DNA sequence
b)
exactly the same DNA sequences
c)
no proteins in common
d)
completely different DNA sequence
59.
asexual reproduction produces offspring with
a)
half of a single parent's genes
b)
the same genes as the parent
c)
a mix of genes from two parents
d)
lots of genetic variation
60.
Natural selection could not occur without
a)
geographic isolation
b)
variation in the population
c)
stable environments
d)
competition for unlimited resources
61.
The stages of mitosis in order
a)
Metaphase, Anaphase, Prophase, Telophase
b)
Prophase, Anaphase, Metaphase, Telophase
c)
Prophase, Metaphase, Anaphase, Telophase
d)
Anaphase, Prophase, Telophase, Metaphase
62.
When a cell divides in mitosis, what do we call the 2 new cells?
a)
mother cells
b)
father cells
c)
daughter cells
d)
son cells
63.
If the message never gets through for a cell to stop dividing and it just keeps dividing through mitosis over and over again, what can form?
a)
tumor
b)
freckle
c)
goosebump
d)
scab
64.
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
65.
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
66.
Cells of organism must replicate for ?
a)
growth
b)
repair of damaged cells
c)
replacement of dying cells.
d)
All of the above
67.
Before cells can divide, what must be copied?
a)
mitochondria
b)
cytoplasm
c)
DNA
d)
Cell Wall
68.
The cell spends most of it's life in ________________.
a)
mitosis
b)
cytokinesis
c)
Interphase
d)
None of the above
69.
a)
Prophase
b)
Interphase
c)
Anaphase
d)
Telophase
70.
a)
Anaphase
b)
Cytokinesis
c)
Telophase
d)
Metaphase
71.
a)
Cytokinesis
b)
Interphase
c)
Anaphase
d)
Metaphase
72.
a)
Cytokinesis
b)
Anaphase
c)
Telophase
d)
Prophase
73.
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
74.
After meiosis is complete how many cells will there be?
a)
1
b)
2
c)
3
d)
4
75.
Another name for a sex cell is a:
a)
gamete
b)
embryo
c)
bone cell
d)
muscle cell
76.
After meiosis is complete, the new cells:
a)
are all identical
b)
are all different
c)
are half identical and half different
d)
are all stretched out
77.
Why is sexual reproduction better than asexual reproduction?
a)
It gives an advantage to organisms to be different than the rest, if the environment changes.
b)
It is better for all organisms to be the same.
c)
It happens faster.
d)
It helps skin cells divide faster to heal wounds.
78.
Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...
a)
16 chromosomes.
b)
46 chromosomes.
c)
8 chromosomes.
d)
4 chromosomes.
79.
Structure (b) is a ____.
a)
chromosome
b)
chromatid
c)
centromere
80.
Structure (a) is a ____.
a)
chromosome
b)
chromatid
c)
centromere
81.
Structure (c) is a ____.
a)
chromosome
b)
chromatid
c)
centromere
82.
Unlike mitosis, meiosis in male mammals results in the formation of
a)
one haploid gamete
b)
three diploid gametes
c)
four diploid gametes
d)
four haploid gametes
83.
Crossing over helps promote
a)
male genotype
b)
genetic variation
c)
DNA replication
d)
mitosis
84.
What is cancer?
a)
The heart does not receive enough blood.
b)
Sudden disruption of blood flow to part of the brain.
c)
Blood filled weak spot.
d)
Uncontrolled growth and spread of abnormal cells.
85.
What is the term for using drugs to treat cancer?
a)
Surgery
b)
Radiation
c)
Chemotherapy
d)
Hormonal treatments
Reset
