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WorksheetsFinal Exam
Total questions: 222
Worksheet time: 2hrs 51mins
Different forms of a gene are called
hybrids
dominant factors
alleles
recessive factors
If a homozygous tall pea plant and a homozygous short pea plant are crossed then
the recessive trait seems to disappear
the offspring are of medium height
no hybrids are produced
all the offspring are short
A Punnett square is used to determine the
probably outcome of a cross
actual outcome of a cross
result of mitosis
result of meiosis
Organisms that have two identical alleles for a particular trait are said to be
hybrid
heterozygous
homozygous
genotype
The physical characteristics of an organism are its
genetics
heredity
phenotype
genotype
The illustration below represents what stage of meiosis?
Prophase I
Anaphase II
Telophase I
Metaphase I
Unlike mitosis, meiosis in male mammals results in the formation of
one haploid cell
three diploid polar bodies
four diploid gamete cells
four haploid gamete cells
To maintain the chromosome number of an organism, the gametes must
become diploid
become recessive
be produced by mitosis
be produced by meiosis
A gene map shows
the number of possible alleles for a gene
the relative locations of genes on a chromosome
where chromosomes are in a cell
how crossing-over occurs
This law describes how each member of a homologous pair is pulled randomly to one side or another in anaphase I
Law of Segregation
Law of Independent Assortment
Law of Gravity
Law of Mathematical Order
This law describes how each homologous pair separates independently of any other pairs during Anaphase I of meiosis
Law of Segregation
Law of Independent Assortment
Law of Gravity
Law of Mathematical Order
What goes in box 3
Aabb
AABB
AAbb
aaBb
Check all that apply.
Reproductive cells are _______.
haploid
gametes
somatic
identical
diverse
The process by which one strain of bacteria is apparently changed into another strain is called
transcription
translation
transformation
replication
Bacteriophages are
tiny bacteria
enzymes
coils of RNA
viruses
In prokaryotes, DNA molecules are located in the
nucleus
ribosome
cytoplasm
histone
The diagram below shows which step in the process of DNA?
replication
transcription
translation
transformation
What are the proper complementary base-pairs?
A--T and G--C
A--G and C--T
G--T and A--C
A--C and T--G
T A G G A C T
The complementary strand is...
T A G G A C T
A T G G T G A
A T C C T G A
T T C C A G T
If a strand of DNA has 39% Cytosine, it has...
39% Adenine
39% Guanine
39% Thymine
39% combined Cytosine and Guanine
What enzymes are involved in DNA replication?
helicase, catalase
RNA polymerase, catalase
helicase, DNA polymerase
DNA polymerase, catalase
How many nucleotide bases are there?
1
2
3
4
Who was credited with the discovery of the structure of the DNA molecule?
Alfred Hershey and Martha Chase
Rosalind Franklin and Maurice Wilkins
James Watson and Francis Crick
Linus Pauling
A normal human diploid zygote contains
23 chromosomes
46 chromosomes
44 chromosomes
XXY chromosomes
A chart that traces the inheritance of a trait in a family is called a (an)
pedigree
karyotype
genome
autosomal
Traits that are caused by the interaction of many genes are said to be
polyploid
linked
polygenetic
autosomal
An example of a trait that is determined by multiple alleles is
Huntington disease
ABO blood groups
Down syndrome
hemophilia
Most sex-linked genes are found on the
Y chromosome
O chromosome
YY chromosomes
X chromosome
Hemophilia is a genetic disorder that is
sex-linked
sex-influenced
fairly common
more common in women than in men
Which parental pair could produce females with colorblindness?
homozygous normal vision mother, father with colorblindness
mother with colorblindness, normal-vision father
heterozygous normal-vision mother, normal vision father
heterozygous normal-vision mother, father with colorblindness
A common genetic disorder characterized by bend and twisted red blood cells is
cystic fibrosis
hemophilia
sickle cell disease
muscular dystrophy
A woman is homozygous for A-negative blood type. A man has AB-negative blood type. What is the probability that the couple's child will be type B-negative?
0%
25%
50%
75%
A child has colorblindness. Which genotype-phenotype combination is NOT possible in the child's parents?
The father does not carry the allele and does not have colorblindness
The mother carries one allele but does not have colorblindness
The father carries one allele but does not have colorblindness
The father carries one allele and has colorblindness
Who observed variations in the characteristics of animals and plants on the different islands of the Galapagos?
James Hutton
Charles Lyell
Charles Darwin
Thomas Malthus
In addition to observing living organisms, Darwin studied the preserved remains of ancient organisms called
fossils
adaptations
homologous structures
vestigial organs
Which of the following ideas proposed by Lamarck was later found to be INCORRECT?
Acquired characteristics can be inherited
All species were descended from other species
Living things change over time
Organisms are adapted to their environments
Differences among individuals of a species are referred to as
natural variation
fitness
natural selection
adaptation
Which would an animal breeder use to produce cows that give more milk?
overproduction
genetic isolation
acquired characteristics
artificial selection
An inherited characteristic that increases an organism's ability to survive and reproduce in its specific environment is called a(an)
vestigial organ
adaptation
speciation
radiation
The concept that each living species has descended with changes, from other species over time is referred to as
descent with modification
artificial selection
theory of acquired characteristics
natural selection
Structures that have different mature forms but develop from the same embryonic tissues are
vestigial organs
adaptations
homologous structures
fossils
The economist who reasoned that if the human population continued to grow unchecked, eventually there would not be enough resources was
Lamarck
Darwin
Malthus
Lyell
In recent years "SuperBugs" (bacteria that aren't effected by antibiotics) are becoming more and more common. How could natural selection explain this?
Superbugs have developed resistance because they can survive antibiotics and reproduce
Antibiotics cause bacteria to become superbugs
We have always had the same amount of superbugs; modern media just discusses them more.
There is no reliable data on the origin of super bugs.
Which of these is an example of natural selection?
The largest animal in a population will have more opportunities for reproduction.
Several species of organisms work together so that they all succeed.
One species takes all the resources in an environment leaving none for others.
Organisms that are best suited to an environment tend to survive and reproduce more often.
How does embryology support the Theory of Evolution?
It shows that embryos who develop similarly share a common ancestor
It shows that embryos who develop similarly are not related to one another
It shows that organisms have the ability to evolve, or change, over time
use or disuse
Populations are controlled by war, disease & famine.
Malthus
Hutton
Lyell
Lamarck
Wallace
Sent Darwin and essay with similar ideas as what Darwin proposed.
Malthus
Hutton
Lyell
Lamarck
Wallace
Wrote "Principles of Geology". Geologic events that occurred in the past will continue to occur in the future.
Malthus
Hutton
Lyell
Lamarck
Wallace
One of the first theories of evolution. Organisms can acquire traits over their lifetime.
Malthus
Hutton
Lyell
Lamarck
Wallace
An anatomical feature that no longer seams to have a purpose in the current form of an organism
Homologous structure
Analogous structure
Vestigial structure
None of the above
Which of the following are vestigial structures humans have? Select all that apply.
Appendix
Tailbone
Forearm bones
Goosebumps
Whales have pelvic bones. What type of structure does this best represent?
Homologous structure
Analogous structure
Vestigial structure
None of the above
The combined genetic information of all members of a particular population forms a
gene pool
niche
phenotype
population
The success of an organism in surviving and reproducing is a measure of its
fitness
polygenic traits
speciation
gene pool
Traits that are controlled by more than one gene, such as human height, are known as
single-gene traits
polygenic traits
recessive traits
dominant traits
The type of selection in which individuals of average size have greater fitness than small or large individuals is called
disruptive selection
stabilizing selection
directional selection
genetic drift
The type of selection in which individuals at one end of a curve have the highest fitness is called
stabilizing selection
disruptive selection
directional selection
the founder effect
If coat color in a rabbit population is a polygenic trait, which process might have produced the graph below?
stabilizing selection
disruptive selection
directional selection
genetic equilibrium
A random change in a small population's allele frequency is known as
a gene pool
genetic drift
variation
fitness
A change in allele frequency that results from the migration of a small subgroup of a population is called
natural selection
the Hardy-Weinberg principle
the founder-effect
genetic equillibrum
A group of individuals of the same species that interbreed make up a
species
gene pool
population
genetic drift
The evolution of Darwin's finches is an example of
equilibrium
speciation
stabilizing selection
artificial selection
Which Hardy-Weinberg factor represents the frequency of heterozygous individuals in a population?
p2
2pq
q2
p2 + 2pq
If a population experiences no migration, is very large, has no mutations, has random mating, and there is no selection, which of the following would you predict?
The population will evolve, but much more slowly than normal
The makeup of the population's gene pool will remain virtually the same as long as these conditions hold.
The composition of the population's gene pool will change slowly in a predictable manner.
Dominant alleles in the population's gene pool will slowly increase in frequency while recessive alleles will decrease.
The population probably has an equal frequency of A and a alleles.
Some female peacocks prefer males with large, colorful tales while other female peacocks prefer males with no tail at all. Females are now mating only with the tail they prefer. What type of reproductive barrier is this?
behavioral isolation
hybrid sterility
temporal isolation
mechanical isolation
In the Great Lakes region of North America, gray wolves and coyotes are similar species but do not mate because their breeding periods occur at different times of the year.
Geographic isolation
Behavioral isolation
Temporal isolation
The American toad (Anaxyrus americanus) and Fowler's toad (Bufo fowleri) live in the same area. However, The American toad mates in early summer while Fowler’s mates in late summer.
Geographic isolation
Behavioral isolation
Temporal isolation
Albert’s squirrel and the Kaibab squirrel are distinct subspecies that live on opposite sides of the Grand Canyon. They were once one species, but now differ significantly, including fur coloring.
Geographic isolation
Behavioral isolation
Temporal isolation
Changes in the gene pool over time.
Mitosis
Genetic Variation
Gene Pool
Genetic Drift
Organisms of the same species do not interbreed for various reasons.
Genetic Isolation
Gene Pool
Adaptation
Survival of the Fittest
individuals with alleles for an extreme type are more likely to survive and reproduce
stabilizing selection
directional selection
disruptive selection
genetic drift
the selection pressure favors the extreme phenotypes, dividing the population into 2 distinct groups
directional selection
stabilizing selection
geographic selection
disruptive selection
Individuals with intermediate traits are more likely to survive and reproduce
stabilizing selection
directional selection
adaptive radiation
disruptive selection
Tall kelp have a distinct advantage over shorter kelp in receiving needed sunlight in their ocean environment
directional selection
disruptive selection
stabilizing selection
sexual selection
artificial selection
Aspen trees that are over 25 m tend to blow over in high winds; aspen that are under 15 m don't get enough sun
directional selection
stabilizing selection
disruptive selection
artificial selection
sexual selection
snails with a forward spiral and snails with a backward spiral have an advantage in their environment
directional selection
stabilizing selection
disruptive selection
artificial selection
sexual selection
Scientists who specialize in the study of fossils are called
biologists
paleontologists
zoologists
anthropologists
Sedimentary rocks form when layers of small particles are compressed
in the atmosphere
in a snowfield
in mountains
under water
Radiometric dating of rock samples
is a method of absolute dating
is a method of relative dating
forms a geologic column
forms a geologic time scale
Half-life is the length of time required for half the atoms in a radioactive sample to
decay
double
expand
be created
Earth's atmosphere contained little or no
hydrogen cyanide
hydrogen sulfide
nitrogen
oxygen
In Miller and Urey's experiments with the origin of life-forms, electric sparks were passed through a mixture of gases to
simulate temperature
simulate sunlight
sterilize gases
simulate lightning
Outlines of ancient cells that are preserved well enough to identify them as prokaryotes are
microfossils
heterotrophs
autotrophs
phototrophic
Which event occurred at the end of the Paleozoic Era
coevolution
mass extinction
punctuated equilibrium
convergent evolution
The process that produces a similar appearance among unrelated groups of organisms is
adaptive radiation
coevolution
convergent evolution
mass evolution
As a group, the larger-scale evolutionary changes that take place over long periods of time are called
macroevolution
coevolution
convergent evolution
geologic time
_______________________ are the remains or imprints left behind from plants and animals.
Fossil
Record
Papyrus
Quality
Which layer is OLDER? Layer M or Intrusion P?
Layer M
Intrusion P
Analyze the seashell found in the white layer. Which statement is true of the rock layer that contains this fossil?
It could also contain a fossil from the bottom layer.
It is older than the layers below it.
It is younger than the layers above it.
It is older than the layers above it.
What are the relative ages of the features in order from oldest to youngest?
Limestone, Basalt, Fault, Siltstone
Siltstone, Fault, Basalt, Limestone
Limestone, Fault, Basalt, Siltstone
Limestone, Siltstone, Fault, Basalt
Unstable atoms that decay (change) and are considered radioactive
Isotope
Half-Life
Absolute Dating
Radiometric Dating
Length of time for half the atoms of an isotope to decay
Isotope
Half-Life
Radiometric Dating
Absolute Dating
The age of rocks and geologic features compared with other rocks and features nearby.
Relative Age
Absolute Age
What percentage of the original isotope is left after 2 half-lives?
100%
75%
50%
25%
The entire history of the Earth can be divided into the Precambrian (ancient) Eon and the Phanerozoic (current) Eon. Which of the following correctly represents the percent of Earth's history occupied by each?
88% Precambrian, 12% Phanerozoic
12% Precambrian, 88% Phanerozoic
81% Precambrian, 19% Phanerozoic
19% Precambrian, 81% Phanerozoic
Earth’s most primitive life forms are represented by:
prokaryotic cells.
plants.
fungi.
tube worms.
Earth's current atmosphere is composed mostly of nitrogen gas. Where did all of this nitrogen come from?
from the breakdown of the ammonia in the early atmosphere
from outer space via comets and asteroid
directly from the Earth's outer core
from the photosynthesis of early bacteria
"Endosymbiosis" means
Living together
Entering together
Living separately
Joining together
____________ & _________________ are organelles that definitely arose from endosymbiosis.
Nucleus and cell membrane
Chloroplast and mitochondria
Mitochondria and nucleus
Cell wall and chloroplast
Bacteria are an example of a _________ cell.
Eukaryotic
Prokaryotic
animal
plant
1 Paleozoic
2 Cenozoic
3 Precambrian
4 Mesozoic
Evolution occurring gradually and slowly over long periods of time
Homeostasis
Stasis
Punctuated Equilibrium
Gradualism
Which form of evolution can occur quickly?
gradualism
punctuated equilibrium
allopatric speciation
sympatric speciation
Prokaryotes are unlike all other organisms in that their cells
lack nuclei
have organelles
have cell walls
lack nucleic acid
Archaebacteria that live in oxygen-free-environments include
methanogens
retroviruses
bacteriophages
protists
Which micrograph shows bacillus bacteria?
Bacteria reproduce asexually by
binary fission
spores
conjunction
fixation
The process of converting nitrogen into a form plants can use is known as nitrogen
conjugation
sterilization
decomposition
fixation
Particles made up of nucleic acids, proteins, and in some cases, lipids can reproduce only by infecting living cells are known as
bacteria
capsids
prophages
viruses
The outer protein coat of a virus is a
core of DNA
core of RNA
capsid
membrane envelope
One group of viruses that contain RNA as their genetic information is
oncogenic virus
retroviruses
capsids
prophages
Disease-causing organisms are known as
cocci
bacilli
pathogens
archaebacteria
Any change, other than an injury, that disrupts the normal functions of a person's body is a
Disease
Pathogen
Toxin
Vector
Disease-causing agents such as viruses, bacteria, and fungi are known as
antibodies
antigens
pathogens
toxins
The germ theory of disease was established by
Steere
Koch
Hooke
Salk
The body's most important nonspecific defense against pathogens is
tears
mucus
saliva
skin
A nonspecific defense reaction to tissue damage caused by injury or infection is known as
the inflammatory response
active immunity
cell-mediated immunity
passive immunity
The swelling and pain associated with inflammation are caused by the
secretion of antibodies
expansion of local blood vessels
secretion of antigens
destruction of bacteria by white blood cells
A protein that helps other cells resist viral infection is
interferon
penicillin
prednisone
histamine
In the illustration below, Label X is point to the ________.
antigen-binding sites
antigens
antibodies
interferons
A substance that triggers an immune response is a (an)
antibody
antigen
B-cell
pathogen
Mast cells release chemicals known as
antibodies
antigens
histamines
pathogens
Which of the following was NOT a believed cause of disease prior to the 1870s?
evil spirits
bad smells
bacteria
curses
An animal that carries a pathogen that can infect a human is called a .....
pathogen
disease
vector
biotic agent
The idea that microorganisms cause disease is called________.
disease theory
Koch's postulates
bacteria theory
germ theory
Which scientist worked with broth to discover that the idea of spontaneous generation is wrong?
Koch
Semmelweis
Pasteur
Snow
Which scientist created a set of postulates to identify that germs are responsible for causing diseases?
Pasteur
Semmelweis
Snow
Koch
What can help stop the spread of viruses?
isolating bad air
antibiotics
removing all water pumps
vaccination
Antibiotics will kill which of the following:
viruses
fungus
protists
bacteria
Which of the following is NOT an infectious disease?
Influenza
AIDS
Cancer
Small Pox
Cells that engulf and digest pathogens are
plasma cells
phagocytic cells
helper T cells
antibodies
Which of these words should you include in a description of phagocytosis?
Swallow and Digest
Engulf and Digest
Engulf and Destroy
Digest and Kill
Which of the following is NOT a way in which pathogens are spread?
Soil
Water
Person-Person
Infected Animals
Dirty Laundry
A multicellular, eukaryotic organisms that can cause infection, and act as a parasite. Example: athlete's foot, and ringworm.
Virus
Bacteria
Fungus
Protozoa
Nonspecific responses are quick, fight all invaders, and consist of which of the following?
Intact skin and mucous membranes.
Prostaglandins
Antibodies
Memory Cells and Plasma Cells
The first line of defense consists of non specific barriers to block entry into the body. Which of the following is NOT one of those defenses?
Skin
Nasal Hairs
Gastric Juice
Plasma
Ear Wax
When viruses infect body cells, certain host cells produce proteins that inhibit synthesis of viral proteins and help block viral replication. this protein is called
histamine
lysozyme
interferons
amylase
The main role of antibodies is
increase the production of viral proteins
destroy pathogens
tag antigens for destruction by immune cells.
inhabit the production of viral proteins
……………..increase the flow of blood and fluids to the affected area and enlarge blood capillaries
histamine
lysozyme
phagocyte
B cells
The inflammatory response causes infected areas to become
dry and cold
painful, cold and red
red, warm but with no sense of pain
red, warm and painful, or inflamed.
The main working cells of the immune response
B cells
antibodies
T cells
B & T cells
Compounds that block the growth and reproduction of bacteria.
AIDS
HIV
Antibiotics
A condition in which a person's immune system is overly sensitive to environmental substances that are normally harmless.
Allergy
Antigen
Bacteria
Virus
A weakened or dead virus can act as a:
Allergen
Virus
Vaccine
Pathogen
When the body launches an immune response against its own cells
Koch's Postulates
Immunity
Vaccine
Autoimmune disease
AIDS
Pathogens that are spread via animals and insects. The animal or insect passes the pathogen to people.
Direct Contact
Indirect Contact
Airborne Transmission
Foodborne Tranmission
Vector-Borne Transmission
You are bit by a rabid squirrel! Because of this you contract Rabies. Identify the vector.
Human
Squirrel
Rabies
You are bit by a rabid squirrel! Because of this you contract Rabies. Identify the host.
Human
Squirrel
Rabies
The set of reactions of an organism to changes in its internal condition or external environment is called
behavior
learning
conditioning
stimuli
Light, sound, and temperature are examples of
responses
behaviors
circadian rhythms
external stimuli
A dog learns to expect food whenever a bell is rung. This is an example of
insight learning
classical conditioning
migration
instinct
A decrease in response to a stimulus that neither rewards nor harms an animal is called
instinct
operant conditioning
habituation
classical conditioning
Insight learning is common among
dogs
primates
birds and insects
birds only
Study the image above. What type of learning is occurring?
insight learning
imprinting
classical conditioning
operant conditioning
The fact that you sleep at night and attend school during the day is an example of a (an)
migration
circadian rhythm
aggressive behavior
social behavior
Each year, a bird called the American redstart travels from its winter home in South America to its nesting area in New York. This behavior is called
migration
competition
imprinting
courtship
Which of the following is NOT a type of social behavior?
operant conditioning
communication
hunting in a pack
courtship
A system of communication that uses meaningful sounds, symbols, or gestures according to specific rules is called
behavior
language
competition
a signature
Each of the choices below refers to the statement given. Select the best-lettered choice
Statement:
"A rat learns to press a button to get food is"
Insight learning
Operant conditioning
Classical conditioning
Habituation
Each of the choices below refers to the statement given. Select the best-lettered choice
Statement:
"A dog always salivates at the ringing of a bell"
Insight learning
Operant conditioning
Classical conditioning
Habituation
Each of the choices below refers to the statement given. Select the best-lettered choice
Statement:
"A chimpanzee stacks boxes in order to reach a banana hanging from the ceiling"
Insight learning
Operant conditioning
Classical conditioning
Habituation
Each of the choices below refers to the statement given. Select the best-lettered choice
Statement:
"A bird stops responding to a repeated warning call when it is not followed by an attack"
Insight learning
Operant conditioning
Classical conditioning
Habituation
Which kind of behavior does NOT involve learning?
habituation
trial and error
imprinting
instinct
A male three-spined stickleback fish will attack male red-bellied sticklebacks and models of fishes that have a red underside. It will not attack males or models lacking a red underside. What can you conclude from the three-spined stickleback's behavior?
The stimulus for an attack is a red underside
The stimulus for an attack is aggression
The stimulus for an attack is the presence of a fish with red fins
The stimulus for an attack is the presence of a fish model
Which of the following is NOT an innate behavior?
a dog looking for its food dish
a baby mammal sucking milk
a worm moving away from bright light
a spider spinning a web
A woman moves into a house by a railroad track. After a couple weeks, she no longer notices the sound of the train. Her reaction is an example of
operant conditioning
habituation
imprinting
insight learning
The researcher was trying to find out whether there is a correlation between
the number of a male bird's songs and the number of offspring
the number of a male bird's songs and his attractiveness to females
a male's age and the number of songs he sings
a male's age and when he mates
What can you conclude based on the graph shown above?
Males prefer females that do not sing
Females prefer males that do not sing
Males prefer females with a large number of songs
Females prefer males with a large number of songs
