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WorksheetsBiology Review
Total questions: 67
Worksheet time: 38mins
Name
Class
Date
1.
At the end of mitosis, one cell has divided to produce two identical ________________.
a)
daughter cells
b)
strands
c)
chromosomes
d)
chromatids
2.
In which stage of the cell cycle do the nucleus and its contents divide?
a)
S
b)
G1
c)
mitosis
d)
G2
3.
DNA is replicated during which part of Interphase?
a)
G1
b)
S
c)
G0
d)
G2
4.
Cells spend most of their lifetime in interphase.
a)
True
b)
False
5.
Each human cell contains two copies of each size of chromosome for a total of 23 homologous pairs of chromosomes (46 chromosomes in all).
a)
True
b)
False
6.
The total chromosome number for a human body cell before mitosis is _________.
a)
38
b)
23
c)
46
d)
100
7.
Cells that continue to divide uncontrollably or surround normal cells are called _____________.
a)
reproductive cells
b)
germ cells
c)
cancer cells
d)
all of these
8.
The phases of Mitosis in proper order are ....
a)
Metaphase, Telophase,
Anaphase, Prophase
b)
Telophase, Anaphase,
Prophase, Metaphase
c)
Prophase, Anaphase,
Metaphase, Telophase
d)
Prophase, Metaphase,
Anaphase, Telophase
9.
What phase is when spindle fibers push and pull the chromosomes so they line up in the middle of the cell.
a)
Anaphase
b)
Metaphase
c)
Prophase
d)
Telophase
10.
When you look at someone's hair color, you are observing their _______.
a)
recessive traits
b)
dominant alleles
c)
genotype
d)
phenotype
11.
The recessive allele masks the effects of a dominant allele.
a)
true
b)
false
12.
The allele for a recessive trait is usually represented by a capital letter.
a)
true
b)
false
13.
When an organism has two different alleles for a particular gene, the organism’s genotype is called
a)
purebred
b)
homozygous
c)
heterozygous
d)
recessive
14.
Which of the following is a homozygous recessive individual?
a)
TT
b)
Tt
c)
tT
d)
tt
15.
Cross Bb x bb and determine the phenotypes of the offspring. Choose from the list below:
a)
all of the offspring will
show the dominant trait
b)
all of the offspring will
show the recessive trait
c)
the recessive trait will
show up in about 2/4 of the offspring
d)
the dominant trait will
show up in about 3/4 of the offspring
16.
Which of the following is a term for a group of similar organisms that can reproduce and produce fertile offspring?
a)
individual
b)
population
c)
species
d)
fossil
17.
The scientist who proposed the theory of evolution by natural selection was
a)
Lamarck
b)
Darwin
c)
Pasteur
d)
Redi
18.
In natural selection, traits result from the selective action of
a)
humans
b)
mutations
c)
breeders
d)
environment
19.
Forming a new dog breed is the result of
a)
natural selection
b)
artificial selection
c)
survival of the fittest
d)
different species that evolved at the same time
20.
What is suggested by the similarity of early embryos of different species of vertebrates?
a)
no evolutionary
relationship between the groups
b)
recent common ancestry
c)
similar environments in the
past
d)
evolution from a distant
common ancestor
21.
Upon close examination of the skeleton of an adult python snake, you can see pelvic bones and small, but useless, leg bones. These structures are an example of
a)
artificial selection
b)
homologous structures
c)
vestigial structures
d)
analogous structures
22.
A kidney cell is an example of which type of cell?
a)
sex cell
b)
germ cell
c)
somatic cell
d)
haploid cell
23.
Which of the following cell types is diploid?
a)
ovum
b)
sex ecll
c)
somatic cell
d)
gamete
24.
If an organism has 8 chromosomes in its egg or sperm cells, how many chromosomes would you expect to find in the body cells?
a)
4
b)
8
c)
12
d)
16
25.
In humans, meiosis produces gametes that have how many chromosomes?
a)
44
b)
22
c)
46
d)
23
26.
Humans have 46 chromosomes in all cells except egg and sperm cells. How many pairs of these chromosomes are called autosomes?
a)
#1-22
b)
23rd
c)
#12-23
d)
5th
27.
Meiosis produces ________.
a)
two haploid cells
b)
4 haploid cells
c)
4 diploid cells
d)
4 haploid cells
28.
How many organisms are involved in sexual reproduction?
a)
4
b)
3
c)
2
d)
1
29.
The gamete produced by females is called
a)
a zygote
b)
a sperm
c)
an egg
d)
a polar body
30.
The gamete produced by males is called
a)
a zygote
b)
a sperm
c)
an egg
d)
a polar body
31.
What is the term for all the different species in a given area?
a)
population
b)
ecosystem
c)
community
d)
biome
32.
Wind is considered to be an abiotic factor because it _____________.
a)
is not related to biodiversity
b)
is a nonliving thing
c)
is in equilibrium
d)
is not in any ecosystem
33.
A moose is considered to be a consumer because it ____________.
a)
gets energy by eating other resources
b)
makes its own food
c)
forms carbohydrates using chemicals
d)
uses sunlight for energy
34.
A model that shows a single sequence of feeding relationships is called a _________.
a)
trophic level
b)
food chain
c)
food web
d)
all of the above
35.
Decomposers are mportant to ecosystems because they ___________.
a)
recycle vital nutrients to the environment
b)
are producers
c)
capture energy from the Sun
d)
can be carnivores
36.
A food chain contains the following organisms: oak trees--> mice--> black rat snakes--> bald eagles. How many trophic levels does this food chain have?
a)
one
b)
two
c)
three
d)
four
37.
What does this diagram show?
a)
the nitrogen cycle
b)
the water cycle
c)
the oxygen cycle
d)
the carbon cycle
38.
All the biotic and abiotic factors in a given area makeup __________.
a)
a habitat
b)
a community
c)
an ecosystem
d)
a population
39.
The place where an organism lives is known as its ______________.
a)
niche
b)
habitat
c)
community
d)
behavior
40.
The idea that two species cannot occupy the same niche is known as the _________________________.
a)
ecological equivalence theory
b)
niche partitioning law
c)
evolutionary response hypothesis
d)
competitive exclusion principle
41.
Hawks and foxes compete to eat field mice. This is a form of ______________.
a)
intraspecific competition
b)
competitive exclusion
c)
interspecific competition
d)
random dispersion
42.
Which of these is an example of parasitism?
a)
A lion defends its territory
b)
A squirrel stores food in a tree hole
c)
A leech feeds on a host's blood
d)
A polar bear kills and eats a seal
43.
Organisms that use energy from the sun or other nonliving source to make their own food
a)
Autotroph
b)
Omnivore
c)
Decomposer
d)
Herbivore
44.
Animals such as lions that consume only other animals
a)
Omnivore
b)
Carnivore
c)
Decomposer
d)
Herbivore
45.
Animals such as horses and deer that consume only plants
a)
Omnivore
b)
Carnivore
c)
Decomposer
d)
Herbivore
46.
Organisms such as fungi and bacteria that break down dead plants or animals
a)
Autotroph
b)
Carnivore
c)
Decomposer
d)
Herbivore
47.
Animals such as bears that consume both plants and other animals
a)
Autotroph
b)
Carnivore
c)
Omnivore
d)
Herbivore
48.
A wolf catches and eats a rabbit.
a)
Predation
b)
Parasitism
c)
Competition
d)
Mutualism
49.
A flea lives on a dog and bites the dog to get a meal of ever so delicious blood.
a)
Commensalism
b)
Mutualism
c)
Parasitism
d)
Predation
50.
Two male turkeys are fanning their tails out to prove that are the toughest birds on the block.
a)
Predation
b)
Commensalism
c)
Competition
d)
Mutualism
51.
Orchids grow on the sides of trees in the rain forest so it can get more sunlight. The orchid asks the tree, " Do I owe you anything?" The tree is like, "Nah, don't worry about it."
a)
Commensalism
b)
Mutualism
c)
Parasitism
d)
Competition
52.
The process of making an mRNA strand from a DNA template is called
a)
Replication
b)
Transcription
c)
Translation
d)
Protein Synthesis
53.
The process of using an mRNA to make a protein is called
a)
Replication
b)
Transcription
c)
Translation
d)
Cell Division
54.
Transcription takes place in the
a)
cytoplasm
b)
chloroplast
c)
nucleus
d)
mitochondria
55.
Translation takes place in the
a)
ribosome
b)
chloroplast
c)
nucleus
d)
mitochondria
56.
Contains the bases adenine, thymine, guanine and cytosine
a)
DNA
b)
RNA
c)
Both
57.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
58.
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
59.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
60.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
61.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
62.
DNA codes for...
a)
cholesterol
b)
proteins
c)
fatty acids
d)
a sandwich
63.
Nitrogenous bases are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
64.
Which process is shown?
a)
diffusion
b)
repiration
c)
recombination
d)
translation
65.
What nitrogen base is in DNA but NOT RNA?
a)
uracil
b)
thymine
c)
guanine
d)
adenine
66.
DNA sequence is ACAGTGC. How would this be coded on mRNA?
a)
TGTCACG
b)
UGUCACG
c)
GUGACAU
d)
CACUGUA
67.
The diagram shows the process of
a)
Transcription
b)
Translation
c)
Replication
d)
Mitosis
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